Steps to reproduce:

1. load a page with an OoUiInlineMenuWidget (I used the one in MultimediaViewer master, behind the "Use this file" button)
2. get the menu widget behind it, run off('select') (with the current version of MultimediaViewer, this can be done from the console via mw.mmv.bootstrap.viewer.ui.panel.fileReuse.tabs.embed.embedWtSizeSwitch.getMenu().off('select') )

Expected result: any custom handlers are removed, but default behavior is unaffected

Actual result: default behavior is disabled - the selection (the content of the .oo-ui-inlineMenuWidget-handle class) does not change when selecting an option.

Version: unspecified
Severity: minor