Merge pull request #818 from Alkarex/ConfigurationSetterBug

Configuration setter bug

app/Models/ConfigurationSetter.php

@@ -117,9 +117,11 @@ class FreshRSS_ConfigurationSetter {
 	private function _queries(&$data, $values) {
 		$data['queries'] = array();
 		foreach ($values as $value) {
+			if ($value instanceof FreshRSS_UserQuery) {
 				$data['queries'][] = $value->toArray();
 			}
 		}
+	}
 
 	private function _sharing(&$data, $values) {
 		$data['sharing'] = array();