small toggle fix for list & objects

frontend/src/lib/components/InputTransformForm.svelte

@@ -287,6 +287,7 @@
 												arg.value = undefined
 											}
 											arg.expr = undefined
+											arg.type = 'static'
 										}
 									} else {
 										if (arg) {

frontend/src/lib/utils.ts

@@ -662,7 +662,10 @@ export function toCamel(s: string) {
 	})
 }
 
-export function cleanExpr(expr: string): string {
+export function cleanExpr(expr: string | undefined): string {
+	if (!expr) {
+		return ''
+	}
 	return expr
 		.split('\n')
 		.filter((x) => x != '' && !x.startsWith(`import `))