1) Got to https://vktarget.ru/
2) Click on Регистрация
3) Generate a password via the context menu on the first field

Observe that the generated password is only filled into the second password field.

Captured password manager logs are listed below. Logs are cleared and no longer captured when all password-manager-internals pages are closed.
Message: PasswordAutofillAgent::DidStartProvisionalLoad 
The new state of the UI: 0
Message: PasswordAutofillAgent::SendPasswordForms 
only_visible: false
Security origin: https://vktarget.ru/ 
Number of all forms: 6
Form is a password form: {
Action : https://vktarget.ru/ ,
New password element : password ,
Origin : https://vktarget.ru/ ,
PSL match : false,
Password element : password ,
Password generated : false,
Scheme : HTML ,
Signon realm : https://vktarget.ru/ ,
Times used : 0,
Username element : username 
}
Message: PasswordManager::CreatePendingLoginManagers 
SSL errors present: false
IsPasswordManagementEnabledForCurrentPage: true
Number of pending login managers (before): 0
Adding manager for form: {
Signature of form: 14112780975090604210
Signon realm: https://vktarget.ru/
Origin: https://vktarget.ru/
Action: https://vktarget.ru/
Form name: 
Form fields: 
username: 3045152083, type=email
password: 2051817934, type=password
: 1318412689, type=text
: 50101327, type=tel
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
complain: 1278179099, type=checkbox
: 2964261712, type=email
username: 3045152083, type=email
password: 2051817934, type=password
: 2964261712, type=email
: 475301429, type=password
: 475301429, type=password
reg_agree: 2091958273, type=checkbox
}
Message: FormFetcherImpl::Fetch 
FormFetcherImpl::state_: 1
Number of pending login managers (after): 1
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Generation possible account creation forms: 1
Message: Generation: no non-blacklisted confirmation 
SSL errors present: false
IsPasswordManagementEnabledForCurrentPage: true
Server predictions: {
Signature of form: 5498056387379930324
Origin: https://vktarget.ru/
Action: https://vktarget.ru/
Form fields: 
amount: 2392513022, type=text
order: 474607367, type=text
description: 4143346520, type=text
name: 3489289364, type=text, SERVER_PREDICTION: NAME_FULL
email: 420638584, type=text, SERVER_PREDICTION: EMAIL_ADDRESS
phone: 1635119699, type=text, SERVER_PREDICTION: PHONE_HOME_CITY_AND_NUMBER
}
Message: PasswordAutofillAgent::SendPasswordForms 
only_visible: false
Security origin: https://h.cackle.me/ 
Message: Webpage is empty 
Message: Generation invalid PasswordForm 
Message: PasswordAutofillAgent::SendPasswordForms 
only_visible: true
Security origin: https://h.cackle.me/ 
Message: Webpage is empty 
Message: Generation invalid PasswordForm 
Message: FormFetcherImpl::OnGetPasswordStoreResults 
Number of results from the password store: 0
Message: PasswordAutofillAgent::SendPasswordForms 
only_visible: false
Security origin: https://vktarget.ru/ 
Number of all forms: 6
Form is a password form: {
Action : https://vktarget.ru/ ,
New password element : ,
Origin : https://vktarget.ru/ ,
PSL match : false,
Password element : password ,
Password generated : false,
Scheme : HTML ,
Signon realm : https://vktarget.ru/ ,
Times used : 0,
Username element : username 
}
Message: PasswordManager::CreatePendingLoginManagers 
SSL errors present: false
IsPasswordManagementEnabledForCurrentPage: true
Number of pending login managers (before): 1
Adding manager for form: {
Signature of form: 10346288529990093648
Signon realm: https://vktarget.ru/
Origin: https://vktarget.ru/
Action: https://vktarget.ru/
Form name: 
Form fields: 
username: 3045152083, type=email
password: 2051817934, type=password
: 1318412689, type=text
: 50101327, type=tel
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
charge_type: 4292972348, type=radio
complain: 1278179099, type=checkbox
: 2964261712, type=email
username: 3045152083, type=email
password: 2051817934, type=password
g-recaptcha-response: 3309787731, type=textarea
: 2964261712, type=email
: 475301429, type=password
: 475301429, type=password
reg_agree: 2091958273, type=checkbox
}
Message: FormFetcherImpl::Fetch 
FormFetcherImpl::state_: 1
Number of pending login managers (after): 2
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Generation possible account creation forms: 2
Message: Generation: no non-blacklisted confirmation 
Message: Generation: no non-blacklisted confirmation 
Message: PasswordAutofillAgent::SendPasswordForms 
only_visible: false
Security origin: https://www.google.com/ 
Number of all forms: 0
Message: Generation invalid PasswordForm 
Message: PasswordAutofillAgent::SendPasswordForms 
only_visible: true
Security origin: https://www.google.com/ 
Number of all forms: 0
Some control elements not associated to a form element are visible: false
Message: PasswordManager::CreatePendingLoginManagers 
SSL errors present: false
IsPasswordManagementEnabledForCurrentPage: true
Number of pending login managers (before): 2
Number of pending login managers (after): 2
Message: PasswordManager::OnPasswordFormsRendered 
Message: PasswordManager::CanProvisionalManagerSave 
Message: No provisional save manager 
Message: Generation invalid PasswordForm 
Message: PasswordAutofillAgent::SendPasswordForms 
only_visible: false
Security origin: https://www.google.com/ 
Number of all forms: 0
Message: Generation invalid PasswordForm 
Message: PasswordAutofillAgent::SendPasswordForms 
only_visible: true
Security origin: https://www.google.com/ 
Number of all forms: 0
Some control elements not associated to a form element are visible: false
Message: PasswordManager::CreatePendingLoginManagers 
SSL errors present: false
IsPasswordManagementEnabledForCurrentPage: true
Number of pending login managers (before): 2
Number of pending login managers (after): 2
Message: PasswordManager::OnPasswordFormsRendered 
Message: PasswordManager::CanProvisionalManagerSave 
Message: No provisional save manager 
Message: Generation invalid PasswordForm 
Message: PasswordAutofillAgent::SendPasswordForms 
only_visible: true
Security origin: https://vktarget.ru/ 
Number of all forms: 6
Form found on page: {
Action : https://partner.rficb.ru/ ,
Form name or ID : 
}
Form is visible: false
Form found on page: {
Action : ,
Form name or ID : TinkoffPayForm 
}
Form is visible: false
Form found on page: {
Action : https://money.yandex.ru/ ,
Form name or ID : 
}
Form is visible: false
Form found on page: {
Action : https://secure.payu.ru/ ,
Form name or ID : 
}
Form is visible: false
Form found on page: {
Action : https://payeer.com/ ,
Form name or ID : 
}
Form is visible: false
Form found on page: {
Action : https://www.paypal.com/ ,
Form name or ID : 
}
Form is visible: false
Some control elements not associated to a form element are visible: true
Form is a password form: {
Action : https://vktarget.ru/ ,
New password element : ,
Origin : https://vktarget.ru/ ,
PSL match : false,
Password element : password ,
Password generated : false,
Scheme : HTML ,
Signon realm : https://vktarget.ru/ ,
Times used : 0,
Username element : username 
}
Message: PasswordManager::CreatePendingLoginManagers 
SSL errors present: false
IsPasswordManagementEnabledForCurrentPage: true
Number of pending login managers (before): 2
Number of pending login managers (after): 2
Message: PasswordManager::OnPasswordFormsRendered 
Message: PasswordManager::CanProvisionalManagerSave 
Message: No provisional save manager 
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Message: Generation invalid PasswordForm 
Generation possible account creation forms: 3
Message: Generation: no non-blacklisted confirmation 
Message: Generation: no non-blacklisted confirmation 
Message: Generation: no non-blacklisted confirmation 
Message: PasswordFormManager::ProcessMatches 
SSL errors present: false
IsPasswordManagementEnabledForCurrentPage: true
Message: Generation: no server signal 
Message: Generation: no server signal 
Message: Generation: no server signal 
Message: FormFetcherImpl::OnGetPasswordStoreResults 
Number of results from the password store: 0
Message: PasswordFormManager::ProcessMatches 
SSL errors present: false
IsPasswordManagementEnabledForCurrentPage: true
Message: Generation: no server signal 
Message: Generation: no server signal 
Message: Generation: no server signal 
Message: Show generation popup 
Message: Generated password accepted 
SSL errors present: false
IsPasswordManagementEnabledForCurrentPage: true
Message: PasswordFormManager::ProcessMatches 
The new state of the UI: 2