The search entry was taking a sort of grab when it was in the
focused-but-empty state, and would eat up most events for other actors
(except, confusingly, for panel actors). The only bit of "modality" we
really need here is that the entry is supposed to go back to the
unfocused state if you click somewhere outside it when it was in the
focused-but-empty state. So do that.
https://bugzilla.gnome.org/show_bug.cgi?id=642502
3755783d41