Retested with the latest git. The patch indeed breaks constraining the mouse on the right side when keystone correction is active. However, the whole "keystone correction" feature is already so horribly broken that I'd just propose to drop it.
The breakage is that, if you click something, the click will not go into a point that you intended to click. I.e. you can't even undo the damage using the xkeystone GUI.
Retested with the latest git. The patch indeed breaks constraining the mouse on the right side when keystone correction is active. However, the whole "keystone correction" feature is already so horribly broken that I'd just propose to drop it.
The breakage is that, if you click something, the click will not go into a point that you intended to click. I.e. you can't even undo the damage using the xkeystone GUI.