Make self calling function snippet ignore scf from plugin

vim/UltiSnips/javascript.snippets

@@ -1,10 +1,10 @@
 snippet f "function"
-function ${1:function_name} (${2:argument}) {
+function ${1:function_name}(${2:argument}) {
 	${VISUAL}$0
 }
 endsnippet
 
-snippet scf "self calling function"
+snippet scf "self calling function" !
 (function (${1:argument}) {
 	${VISUAL}$0
 }(${2:$1}));