Inconsistent Find Palette Behaviour

If I Ctrl+F to find a Glyph, i.e. “I” and then all the I* related glyphs come up like Iacute Ibreve, etc but if I backspace and then type “I” again then the list is “Acircumflex, Adieresis”

http://quick.as/8yDdTOLrl

I can reproduce it but couldn’t fix it yet.