Merge pull request #1382 from craftcms/bugfix/1380-feed-settings-over…

…rides

allow to override to `false` value

src/services/Feeds.php

@@ -288,7 +288,7 @@ private function _createModelFromRecord(FeedRecord $record = null)
         foreach ($attributes as $attribute => $value) {
             $override = $this->getModelOverrides($attribute, $record['id']);
 
-            if ($override) {
+            if ($override !== null) {
                 $attributes[$attribute] = $override;
             }
         }