In GNU Emacs 24.5.1, which comes with Ubuntu 16.04 Xenial Xerus the C-g does not abort the command like it used to do in earlier versions, which is annoying as it breaks the habit.
There is C-] command, which seemingly does the same thing, but keybindings help screen shows they are bound to the same command abort-recursive-edit.
How to return C-g it's previous behavior of aborting a command with input in minibuffer? Are there caveats in changing C-g?
emacs -Q, press C-x C-f as if to find some file, but then press C-g to abandon the attempt. "Quit" is seen briefly, but "Find file: ..." message is still there in minibuffer, while it is expected to go away, like is the case with C-] command. Of coure, C-x C-f is only an example. Same happens with other commands as well.