lib/populate_me/mongo/stash.rb in populate-me-0.0.32 vs lib/populate_me/mongo/stash.rb in populate-me-0.0.33

@@ -58,10 +58,11 @@
 
       def delete_files_for(col)
         obj = (@old_doc||@doc)[col]
         if obj.respond_to?(:each)
           obj.each do |k,v|
-            model.gridfs.delete(v)
+            gridfile = model.gridfs.find(_id: v).first
+            model.gridfs.delete(v) unless gridfile.nil?
           end
         end
       end
 
       def after_delete