In overview mode, if the first letter of a search uses the compose key, the composition is not taken into account.

Steps:
- Go in overview mode;
- type your compose key + ' + e

Result: the search field gets focus and contains: «'e»

Expected result: you expect the search field to contain: «é».

Note: that the compose key works if the search field already has focus, but it won't be taken into account if this is what gives you the field focus.

Considering that the overview is supposed to be localized (you can make a search in the language of the OS, especially using localized comments for applications in desktop files), and not English-only, I believe this should be fixed.