websetup: Fix bug in array change detection.

IkiWiki/Plugin/websetup.pm

@@ -362,7 +362,11 @@ sub showform ($$) {
 				@value=sort grep { length $_ } @value;
 				my @oldvalue=sort grep { length $_ }
 					(defined $config{$key} ? @{$config{$key}} : ());
-				if ((@oldvalue) == (@value)) {
+				my $same=(@oldvalue) == (@value);
+				for (my $x=0; $same && $x < @value; $x++) {
+					$same=0 if $value[$x] ne $oldvalue[$x];
+				}
+				if ($same) {
 					delete $rebuild{$field};
 				}
 				else {

debian/changelog

@@ -7,6 +7,7 @@ ikiwiki (3.20100104) UNRELEASED; urgency=low
   * comments: Fix permalinks for comments using new conflict-free filenames.
   * img: Support alignment of images with captions. (Giuseppe Bilotta)
   * websetup: Fix utf-8 problems.
+  * websetup: Fix bug in array change detection.
 
  -- Joey Hess <joeyh@debian.org>  Mon, 04 Jan 2010 12:53:24 -0500