1. Go to http://translatewiki.net/
2. Log in
3. Select any input method
4. Use ctrl+m few times (maybe not needed)
5. Click inside search field and outside it repeatedly

Observed:
Lots of API requests, usually two per focus of input field, sometimes even more.

Version: master
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=48712