nvda

2ac44d24 - Elements list: catch wxPython::invalid item exception when text in the filter field yields no elements. Re #8753.

Elements list: catch wxPython::invalid item exception when text in the filter field yields no elements. Re #8753. Regression: when a user enters text into the filter field and no elements are found, wxPython returns 'invalid item' when attempting to obtain selection from the search tree. Thus coerce this to default element (initial element).