Ubuntu 14.04, Intel onboard card
Blender Version 2.73 official test build
Crash of Blender:NO
Short description of error
when drawing with grease pencil and you press CTRL+z the frame changes to the last frame you used. Should stay on the frame you are working on.
Exact steps for others to reproduce the error
draw on frame 1, change the frame to for example 10, draw again, press CTRL+z, it goes back to frame 1.