1. BUG#47720 - REPLACE INTO Autoincrement column with negative values.

Detailed revision comments:

r6235 | sunny | 2009-11-26 01:14:42 +0200 (Thu, 26 Nov 2009) | 9 lines
branches/5.1: Fix Bug#47720 - REPLACE INTO Autoincrement column with negative values.

This bug is similiar to the negative autoinc filter patch from earlier,
with the additional handling of filtering out the negative column values
set explicitly by the user.

rb://184
Approved by Heikki.