When I using Unicode keyboard on Mac OSX (Vietnamese in my case) while using normal mode VIM and try to type into the editor (starting with i and then some combination to produce non-ascii characters), it results in a lot of weird changes in the editor like lines of character appears at the end of the editor. Undo multiple times wouldn't restore the text back to what it should be. The problem happens on both MacVim and VIM inside Terminal. I've been experiencing it for 7.3 and 7.4 as of now.
Is there a way to stop VIM from behave like that, like ignore special (non ascii) characters?
A,…,げ…? Does it happen in insert mode? Normal mode? Another one? GUI Vim or Vim? What version? What terminal emulator if any? Does it happen with and without your config? So far, we only have a random guy on the internet complaining about mysterious changes when he forgets something. Barring any more precise info, that's not a bug but simple user error.