fix: don't call Apply() twice

For some reason this was called by `Run()`. All tests pass without it,
so I'm not sure why it was there.

Fixes #481

context.go

@@ -803,11 +803,6 @@ func (c *Context) RunNode(node *Node, binds ...interface{}) (err error) {
 	if len(methods) == 0 {
 		return fmt.Errorf("no Run() method found in hierarchy of %s", c.Selected().Summary())
 	}
-	_, err = c.Apply()
-	if err != nil {
-		return err
-	}
-
 	for _, method := range methods {
 		if err = callFunction(method.method, method.binds); err != nil {
 			return err