Copy-Paste behavior #81
Description
If I copy paste a cell (not by editing the content but the full cell) that has a newline create via Shift+Enter, then 2 cells are created vertically as a result.
becomes 
If I copy paste a cell that contains a coma, then 2 cells are created horizontally as a result.
becomes 
Is this expected behavior ?
I tried to add double quote, but then I realized that 3 of them were present when checking the raw file.