query searching for "." throws exception

[bad]

Load e.g. data-07202009-2.csv. Enter a single dot (".") in the Query Search dialog text field and click Go:

Traceback (most recent call last):
  File "exp_myframe.py", line 660, in OnSearchQuery
    self._applyQuery(qstring,"ORANGE")
  File "exp_myframe.py", line 702, in _applyQuery
    m[2] = 'Query: ' + query_display
IndexError: list assignment index out of range

(Pdb) p m
'', ' 5784' p self.datavector.l[j]
'\ 5784'
(Pdb) p j
0
(Pdb)

Additionally it leaves an orphaned "Search Progress" dialog behind that prevents the program from exiting.