Index: Pref.pm
===================================================================
--- Pref.pm	(revision 7648)
+++ Pref.pm	(working copy)
@@ -240,8 +240,18 @@
 	$sth->execute( $obj->id, $since, @{$filter} );
 	
 	while ( my ($name, $idx, $value, $ts) = $sth->fetchrow_array ) {		
+
+		if ( $value =~ s/^json:// ) {
+			$value = eval { from_json( $value ) };
+			if ( $@ ) {
+				warn "changed_since JSON error: $@\n";
+				next;
+			}
+		}
+
 		if ( exists $prefs->{$name} ) {
 			my $prev = $prefs->{$name}->{value};
+
 			if ( ref $prev eq 'ARRAY' ) {
 				push @{ $prefs->{$name}->{value} }, $value;
 			}
@@ -250,14 +260,6 @@
 			}
 		}
 		else {
-			if ( $value =~ s/^json:// ) {
-				$value = eval { from_json( $value ) };
-				if ( $@ ) {
-					warn "changed_since JSON error: $@\n";
-					next;
-				}
-			}
-			
 			$prefs->{$name} = {
 				value => $value,
 				ts    => $ts,