Inconsistency occurred in the undo/redo buffer.
|Reported by:||Wim||Owned by:||nobody|
Copy a chunk of text from somewhere using alt-c.
Open the mail application, in the mail message area past the text with alt-v. Undo with alt-z. Then do another alt-v and alt-z, and a dialog with the message "Inconsistency occurred in the undo/redo buffer." appears.