Fix unbound local variable. (#13601)
Fixes #13600
Summary of the issue:
PR #13589 introduced an unbound local variable error:
ERROR - queueHandler.flushQueue (19:43:42.878) - MainThread (8840):
Error in func VirtualBuffer._loadBufferDone
Traceback (most recent call last):
File "queueHandler.pyc", line 55, in flushQueue
File "virtualBuffers\__init__.pyc", line 492, in _loadBufferDone
File "browseMode.pyc", line 1306, in event_treeInterceptor_gainFocus
File "virtualBuffers\gecko_ia2.pyc", line 532, in _getInitialCaretPos
File "browseMode.pyc", line 1850, in _getInitialCaretPos
UnboundLocalError: local variable 'caretPos' referenced before assignment`
caretPos will not be set if self.shouldRememberCaretPositionAcrossLoads is False.
Description of how this pull request fixes the issue:
Return caretPos within the above if condition and return None by default.
