Merge some fix into praguetenniscamp.cz

app/Models/Content/ModelTraits/Content.php

@@ -22,9 +22,7 @@ trait Content
         $changed = 0;
 
         // check if any file was removed
-        if ($revisionId) {
-            $changed += $this->removeRelatedFiles($revisionId, $assignedFiles);
-        }
+        $changed += $this->removeRelatedFiles($revisionId, $assignedFiles);
 
         // allow uploading only on created pages
         if (!$this->id || !$files[0]) {
@@ -73,12 +71,10 @@ trait Content
     private function removeRelatedFiles($revisionId, $assignedFiles)
     {
         $allFiles = $this->files()
-                         ->whereNotIn('id', $assignedFiles)
+                         ->whereNotIn('id', array_keys($assignedFiles))
                          ->get();
 
         foreach ($allFiles as $file) {
-            $this->saveHistory($revisionId, 'file', $file->original_filename, ['file' => null]);
-
             ContentHasFile::where('content_id', $this->id)
                           ->where('file_id', $file->id)
                           ->delete();