Log in to http://en.wikipedia.beta.wmflabs.org/

on any page:

• click the cog icon, get Language settings/Display UI
• click the ellipsis button (...)
• type 'de'
• choose 'Deutsch'
• click 'Input'; display switches to German
• click 'X' to close the dialog
• click the cog icon again

UI for ULS should be in English but is in German.

put another way: upon clicking 'X' to close the ULS dialog without saving, ULS should return to default settings, in this case English. Instead, ULS continues to use (German) language settings that have not been saved after the user closes the dialog via the X button

This is the behavior specified in line 55 of the automated test scenario in https://github.com/wikimedia/mediawiki-extensions-UniversalLanguageSelector/blob/master/tests/browser/features/uls_settings_panel.feature

Version: unspecified
Severity: normal