In Blender, shift+middle drag is for moving the view. In Krita, just middle drag is doing that thing and shift+middle drag does image rotation. The thing is, I am accustomed to Blender that I keep accidentally use shift+middle drag in Krita, resulting in unwanted rotation.
It seems that the undo button does not undo the rotation. I could do shift+middle drag again to get the image straight, but that would require a very precise control to set the rotation to 0. And the "Image->Rotate->Rotate Image->Angle Custom" adds that value to the current rotation, not setting the image rotation to that value (that is, if the current rotation is 5 degrees, applying Angle Custom 90 does not make the image rotation to 90, but to 95).
Is there any easy way to undo the shift+middle drag rotation or an easy way to set the image rotation to 0?