Index: trunk/core/install/upgrades.sql
===================================================================
diff -u -N -r8555 -r8556
--- trunk/core/install/upgrades.sql	(.../upgrades.sql)	(revision 8555)
+++ trunk/core/install/upgrades.sql	(.../upgrades.sql)	(revision 8556)
@@ -105,10 +105,10 @@
 
 ALTER TABLE Events ADD ReplacementTags TEXT AFTER Event;
 
-
-# ====== v 4.2.0 ====
+# ===== v 4.2.0 ====
 ALTER TABLE Category ADD `TreeLeft` BIGINT NOT NULL AFTER `ParentPath` ,
 ADD `TreeRight` BIGINT NOT NULL AFTER `TreeLeft` ;
 
-ALTER TABLE Category ADD INDEX ( `TreeLeft` , `TreeRight` ) ;
+ALTER TABLE Category ADD INDEX ( `TreeLeft` );
+ALTER TABLE Category ADD INDEX ( `TreeRight` );