Fixed a bug which caused empty version tags to not be deleted because of a wronhg method call.

docs/changelog/7.x.x.txt

@@ -1,4 +1,5 @@
 7.7.11
+ - Fixed a bug where empty version tags were not deleted. (Martin Kamerbeek / Oqapi)
 
 7.7.10
  - Made a change to LDAP auth that adds an OR to that query so that it also searches for a row with fieldData REGEXP '^uid=(value-from-ldap-directory-server),'. (Wes Morgan)

lib/WebGUI/Operation/VersionTag.pm

@@ -665,7 +665,7 @@ sub www_manageRevisionsInTag {
 
         # If no revisions remain, delete the version tag
         if ( $tag->getRevisionCount <= 0 ) {
-            $tag->delete;
+            $tag->rollback;
             return www_manageVersions( $session );
         }
     }
@@ -693,7 +693,7 @@ sub www_manageRevisionsInTag {
 
         # If no revisions remain, delete the version tag
         if ( $tag->getRevisionCount <= 0 ) {
-            $tag->delete;
+            $tag->rollback;
             return www_manageVersions( $session );
         }
     }