Index: branches/5.1.x/install/upgrades.sql
===================================================================
diff -u -r13111 -r13186
--- branches/5.1.x/install/upgrades.sql	(.../upgrades.sql)	(revision 13111)
+++ branches/5.1.x/install/upgrades.sql	(.../upgrades.sql)	(revision 13186)
@@ -65,3 +65,4 @@
 
 # ===== v 5.1.0-B1 =====
 UPDATE Modules SET Path = 'modules/in-link/' WHERE `Name` = 'In-Link';
+DELETE FROM ConfigurationValues WHERE VariableName IN ('StartValidationTime', 'LastExpirationTime', 'Link_Root');