Had a look at a bug report for the Main Menu, where renaming a document doesn't properly update the URI for the file in the Recent Documents section. When I started playing with it, I found a bug in the rename routine for Recent Documents.
If you right-click on an item in Recent Documents, you can select Rename. It then makes the document name editable. But unless you press Enter, this field will stay editable. So you can go and right-click on all your documents, select rename and the result is something like this;
When talking to jpr on IRC, he suggested that it should instead behave like Nautilus. That behavior will save whatever is in the editing field, unless you press ESC which will undo the editing, and exit the editing mode.
So even though this haven't been reported as a bug, I'll have a look at it and see if I can fix it up.
Plenty of stuff to do, but so little time :-)