WEB-1819 PARTIAL follow-up tweak.
WEB-1819 PARTIAL follow-up tweak.

this makes a new externally-invoked search blank-out the old search
until it starts really loading.

gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm