1- Document "A" got 2 pages.
2- Document "B" got 2 pages.
3- Open Document "A" and copy all pages.
4- Open Document "B" and delete All Pages (the 2 pages).
5- If prompted to delete the empty document press "No".
This step crashes the client:
6- Paste pages copied from Document "A" into Document "B".
Notes:
1- The crash happen only if you deleted all pages, if you delete only 1 page out of 2 from Document "B", then you can paste pages copied from Document "A".
2- Instead of trying to paste pages from document "A" into document "B", drag document "A" into document "B" to move pages, this action does not crash the client but throw an error "You cannot move or delete pages in a document while you are editing it. Please save the copy of this document that you have been editing and try again"