UserAgent: Mozilla/5.0 (X11; CrOS x86_64 10452.85.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.158 Safari/537.36
Platform: 10452.85.0 (Official Build) stable-channel eve

Steps to reproduce the problem:
1. Open contacts.google.com
2. Click '+' to add a new contact
3. Add a contact and address
4. Change the country
5. Already entered street name / zip code will be removed

What is the expected behavior?
Just leave the data which was already entered

What went wrong?
Just leave the data which was already entered

Did this work before? N/A 

Chrome version: 66.0.3359.158  Channel: n/a
OS Version: 10452.85.0
Flash Version: 

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