Add more error handling

diff --git a/includes/filerepo/FileRepo.php b/includes/filerepo/FileRepo.php
index 23a132e..02d0d1f 100644 (file)
--- a/includes/filerepo/FileRepo.php
+++ b/includes/filerepo/FileRepo.php
@@ -101,7 +101,7 @@ abstract class FileRepo {
                # Now try an old version of the file
                if ( $time !== false ) {
                        $img = $this->newFile( $title, $time );
-                       if ( $img->exists() ) {
+                       if ( $img && $img->exists() ) {
                                if ( !$img->isDeleted(File::DELETED_FILE) ) {
                                        return $img;
                                } else if ( ($flags & FileRepo::FIND_PRIVATE) && $img->userCan(File::DELETED_FILE) ) {