From some time (can't figure out from what change) I noticed that "Sublime Text 3" started duplicating classes and input in auto-mode with no reason at all. Sometimes it starts to write something on the beginning of document etc. It may be because of packages\extensions, I still can't figure out.
I put all files on GitHub, will try to look for a reason of this bug. Was searching for it, but didn't find anything. Keyboard works fine, the touchpad was switched off.