https://bugzilla.redhat.com/show_bug.cgi?id=1133127
--- Comment #2 from Stas Sergeev stsp@list.ru --- Hi Mike, I claim that Shift press/release is not the only cause of this. Yes, when I press/release Shift, this happens. But the problem is that it happens on other occasions too. For example, if the Shift was pressed in the beginning of line, in the _middle_ of the line I can suddenly get switched to English. By seeing the typing, I can claim that the letter _was typed_ while Shift was pressed. The evidence is a capital letter in the beginning of the line. Also there would be a few cyrillic non-capital letters between that capital and the occasional switch, and I can hardly believe I can occasionally hit Shift while typing non-capitals. Yet, it _has_ something to do with Shift definitely, and pressing Shift again, returns me to cyrillic typing. I think it is some subtle bug that makes Shift that was pressed earlier, with letters typed, somehow provoke the switch later.
Is there any logging in ibus that I can enable to let you see what's going on?