Shift+Middle Mouse for rotate canvas can interfere with Middle Mouse (Drag Canvas) + Shift (Straight Line) workflows
i'm constantly going around an image with middle mousebutton, while dragging the eraser around with shift. this results in rotating the canvas all the time. (and sometimes huuuge lagspikes or the program crashing) i'm really thinking about downgrading until you can disable this.
Edited by Michael Schumacher