Index: branches/5.1.x/core/install/upgrades.sql
===================================================================
diff -u -N -r14487 -r14514
--- branches/5.1.x/core/install/upgrades.sql	(.../upgrades.sql)	(revision 14487)
+++ branches/5.1.x/core/install/upgrades.sql	(.../upgrades.sql)	(revision 14514)
@@ -2039,4 +2039,8 @@
 
 UPDATE Phrase
 SET l<%PRIMARY_LANGUAGE%>_Translation = 'User name length (min - max)'
-WHERE PhraseKey = 'LA_TEXT_MIN_USERNAME' AND l<%PRIMARY_LANGUAGE%>_Translation = 'Minimum user name length';
\ No newline at end of file
+WHERE PhraseKey = 'LA_TEXT_MIN_USERNAME' AND l<%PRIMARY_LANGUAGE%>_Translation = 'Minimum user name length';
+
+# ===== v 5.1.3 =====
+UPDATE PortalUser
+SET Modified = NULL;
\ No newline at end of file