After snapping any resizable window to the left or the right side of the window it's not possible to manually resize the window anymore without moving the window out of the "snap" area.

1.) Run any application which show a resizeable window (I have first noticed this bug while using Pidgin).
2.) Snap the application window to the right or the left side.
3.) If you have moved the application window to the right side, try to resize the window by dragging the left side towards the right side of the screen (I tried doing this because it doesn't make sense that a messaging application takes up the whole screen, but I wanted it to stay on the far right side).

Results: You will notice that it's not possible to resize the window.
Expected results: it should be possible to resize the window.

I'm using mutter 3.0.0-1 on Archlinux.