formEditor.sql: fixed problem while playing SQL query - deleting old...

formEditor.sql: fixed problem while playing SQL query - deleting old FormElemnts of Formeditor deletes also other Formeelements.

extension/qfq/sql/formEditor.sql

@@ -121,7 +121,7 @@ CREATE TABLE IF NOT EXISTS `FormElement` (
 
 # Delete previous FormElements (if exist)
 DELETE FormElement FROM FormElement, Form
-WHERE Form.name LIKE 'form' OR Form.name LIKE 'formElement' AND Form.id = FormElement.formId;
+WHERE (Form.name LIKE 'form' OR Form.name LIKE 'formElement') AND Form.id = FormElement.formId;
 
 # Delete previous Forms (if exist)
 DELETE FROM Form