Created attachment 215655 [details]
event listener

Steps to reproduce:

1. Launch the attached listener
2. Press Alt+F2 to get into the gnome-shell run dialog
3. Type some text
4. Move the caret to the very {beginning,end} of the text
5. Press Shift + {Right,Left} Arrow to select text

Expected results: The number of reported selections would be 1.
Actual results: The number of reported selections is 0.

Notes:

1. This only seems to occur if text selection starts from the very beginning or very end. Moving just one character in and performing the same test results in things working as expected.

2. If we ignore the reported number of selections and just try to get the first selection anyway, we succeed (i.e. if need be, I could hack around this in Orca. But I'm hoping it's just a silly and easily fixable bug in Cally.)