Weird behavior when deleting the head of the history of a renamed document

Scenario:

• Document Main.A has many versions
• Rename it to Main.B
• Delete the most recent version from the history

Results:

• You are redirected to the history for document Main.A, which doesn't exist ("The requested document could not be found.")
• Document Main.A has been recreated with the version before the deleted one, but without any history at all
• Document Main.B was left unchanged, in its most recent version
• The history of Main.B was chopped, so the "current version" does not appear in its history.

This is a side effect of XWIKI-1949, and although not a critical issue, it can cause inconsistencies in the database.