Edit > Shift feature removing sprite parts permanently (can't undo)

[Dragonayzer]

If one tries to wrap (with [Edit > Shift]) something not touching the border of selection, the object in question gets one row deleted, and it doesn't appear back on undo.

Here's a small gif showing the issue:
https://puu.sh/Cpn6i/8920cbaf3c.gif

Actions on the gif:

• Draw a sprite
  
• Select All
  
• Edit > Shift a few times (I bound it to Ctrl+Arrows, but it happens when using the menu option as well)
  
• Undo a few times