You are able to put form widgets (single line text, toggle box, etc) inside of a
spreadsheet.  If you put some of them into a group, and then Edit the group,
clicking focus to another section of the screen does not "Exit Edit" mode as it
does in the Writer module.

When you click focus to a cell to do so, it fails to exit edit as it should. 
When you click a widget or section of the screen not in the group, it should
toggle this mode off.

To recreate:
1) Start a new spreadsheet.
2) Put a single line entry widget into 2 different cells.
3) Group them together.
4) Click focus into one of them and both of them are marked with green corners
5) Right mouse click and select "Edit Group".
6) This works, you can correctly edit the widgets as expected.
7) Now click focus into a cell that does not contain any widgets.
8) OOo thinks you are still in edit mode and you cannot correctly focus other
widgets in other groups.

You have to right mouse click and exit edit mode.  

Hope this is clear...this really happened to one of our beta testers using M91.