When trying to drag a picture that is displayed in Gwenview (viewer mode), for instance, for copying it quickly to a different location, the mouse pointer "jumps" to the opposite side of the picture. (from the bottom to the top or from the left to the right...)

Thus, D&D of a picture is not possible as the mouse cannot leave the window.

Reproducible: Always

Steps to Reproduce:
1. Display a picture in gwenview
2. Try to drag the picture out of the display window

Actual Results:  
The mouse pointer doesn't leave the window and re-appears at the opposite side of the window

Expected Results:  
The mouse pointer should leave the window, enabling the user to make a copy of the picture, for instance.