Fix display of numeric tag names on Special:Tags

All tag names that were numbers (e.g. "123456") showed up as "0".

Change-Id: I8da326fa4dfa7e6556fb508c5e4b1f1573d1369b

diff --git a/includes/specials/SpecialTags.php b/includes/specials/SpecialTags.php
index 2139949..3ebf5d0 100644 (file)
--- a/includes/specials/SpecialTags.php
+++ b/includes/specials/SpecialTags.php
@@ -128,8 +128,7 @@ class SpecialTags extends SpecialPage {
                        ChangeTags::listExtensionDefinedTags(), true );
 
                // List all defined tags, even if they were never applied
-               $definedTags = array_keys( array_merge(
-                       $this->explicitlyDefinedTags, $this->extensionDefinedTags ) );
+               $definedTags = array_keys( $this->explicitlyDefinedTags + $this->extensionDefinedTags );
 
                // Show header only if there exists atleast one tag
                if ( !$tagStats && !$definedTags ) {