UserAgent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.94 Safari/537.36

Steps to reproduce the problem:
1. Go to Settings > Languages > Language and input settings.
2. Add English (United Kingdom), place it to the top of the list and use it for spell checking.
3. Go to Settings > Privacy and disable "Use a web service to help resolve spelling errors"
4. Type "concious consious conscious" in any text area that usually trigger spell-checking.
5. Go to Settings > Privacy and enable "Use a web service to help resolve spelling errors".
6. Type "concious consious conscious" in any text area that usually trigger spell-checking.

What is the expected behavior?
"concious" and "consious" should get underlined in red in step 4 and 5.

What went wrong?
In step 4, "concious" is not underlined. In step 6, "concious" is underlined but in grey instead of red.

Did this work before? N/A 

Chrome version: 50.0.2661.94  Channel: stable
OS Version: 6.3
Flash Version: Shockwave Flash 21.0 r0

Please check all the Chrome dictionaries against data in Google's server.

Note that Chrome English (US) dictionary does not have this issue. I didn't check other Chrome English dictionaries.

Original Chrome Help Forum post:
https://productforums.google.com/forum/#!topic/chrome/4K5D0W5fsGY