When I commit changes with Emacs' built-in VCS interface (I use it with Bazaar) it commits only one file - that's open in current buffer. So when I press C-c v v, enter message and C-c C-c, it does something like
bzr commit -m "my message" file/open/in.buffer
instead of
bzr commit -m "my message"
How to commit all changes with Emacs?