UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36

Steps to reproduce the problem:
1. Open 2 incognito windows
2. Open few links in 1 window including logged in gmail or any google account.
3. Now close 1 of the window and go to other window and type gmail.com, it will open gmail account without authentication.

What is the expected behavior?
It should ask for either restoring if we open chrome opening multiple tabs in incognito or should not be able to login from other incognito window.

What went wrong?
My personal info if i logged in from someone else laptop, they might be able to access my personal details.

Did this work before? N/A 

Chrome version: 59.0.3071.115  Channel: n/a
OS Version: 10.0
Flash Version: