Fix shifted value display when performing a quick search

1. In the quick search (top right search field on a page) enter a partial value like Admini for example
2. this displays several suggestions
3. click Administrator in the suggestions
4. this performs the search on this value but right after clicking Administrator, it is shifted to the left of the search field and only or is visible.

see attached animated GIF or access nightly.nuxeo.com to reproduce