MDL-13553 - upgrade path to correctly identify the type of each tag_instance

lib/db/upgrade.php

@@ -2846,6 +2846,10 @@ function xmldb_main_upgrade($oldversion=0) {
         upgrade_main_savepoint($result, 2007101508.03);
     }
 
+    if ($result && $oldversion < 2007101508.04) {
+        set_field('tag_instance', 'itemtype', 'post', 'itemtype', 'blog'); 
+        upgrade_main_savepoint($result, 2007101508.04);
+    }
 
     return $result;
 }

version.php

@@ -6,7 +6,7 @@
 // This is compared against the values stored in the database to determine
 // whether upgrades should be performed (see lib/db/*.php)
 
-    $version = 2007101508.03;  // YYYYMMDD   = date of the 1.9 branch (don't change)
+    $version = 2007101508.04;  // YYYYMMDD   = date of the 1.9 branch (don't change)
                             //         X  = release number 1.9.[0,1,2,3...]
                             //          Y = micro-increments between releases