Index: branches/RC/core/install/upgrades.sql
===================================================================
diff -u -N -r11523 -r11546
--- branches/RC/core/install/upgrades.sql	(.../upgrades.sql)	(revision 11523)
+++ branches/RC/core/install/upgrades.sql	(.../upgrades.sql)	(revision 11546)
@@ -1091,4 +1091,6 @@
   Title VARCHAR(255) NOT NULL DEFAULT '',
   Description text,
   PRIMARY KEY  (FormId)
-);
\ No newline at end of file
+);
+
+DELETE FROM PersistantSessionData WHERE VariableName LIKE '%img%';
\ No newline at end of file