Comment 0 for bug 599468

Steps to reproduce:
1.) draw a line (to add an item to the history)
2.) hold down the left mouse button, move the mouse
3.) (while still holding the left mouse button) begin holding the right mouse button down.
4.) release the left mouse button and the right mouse button (in that order, I think). (You should now have at least 3 history items)
5.) click the back/undo (history) button

What happens:
 Two history items are added, clicking undo once undoes the second gradient. Clicking a second time does nothing. Clicking undo a third time will undo the first gradient and whatever you drew before it (so, essentially, you lose a history item).

What's expected:
 Either one gradient is drawn and one history item is added, or two gradients are drawn and two history items are added. In neither case should history be lost.

System Info:

Ubuntu 10.10 (Maverick) 32-bit
Pinta 0.3