1 files changed, 2 insertions, 0 deletions
diff --git a/IkiWiki.pm b/IkiWiki.pm
index b9ae74f85..5ebec5d0b 100644
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -544,6 +544,8 @@ sub pagespec_merge ($$) { #{{{
 	my $a=shift;
 	my $b=shift;
 
+	return $a if $a eq $b;
+
         # Support for old-style GlobLists.
         if (is_globlist($a)) {
                 $a=globlist_to_pagespec($a);