When you copy/cut cells , the selected cells are now shown bordered by an
animated boundary. Because copy & cut are next to each other on the right
click menu you can regulary hit the wrong option without noticing and then
have to ctrl z to repair.

Although relatively simple this problem could be rectified if the animated
boundaries differed in some way. most simplest form could be to show the
copy/cut icons on the boundary once selected.

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