update snapshot tests

test/js/samples/do-use-dataset/expected-bundle.js

@@ -149,10 +149,13 @@ function _set(newState) {
 	this._state = assign({}, oldState, newState);
 	this._recompute(changed, this._state);
 	if (this._bind) this._bind(changed, this._state);
+
+	if (this._fragment) {
 		dispatchObservers(this, this._observers.pre, changed, this._state, oldState);
 		this._fragment.p(changed, this._state);
 		dispatchObservers(this, this._observers.post, changed, this._state, oldState);
 	}
+}
 
 function callAll(fns) {
 	while (fns && fns.length) fns.pop()();

test/js/samples/dont-use-dataset-in-legacy/expected-bundle.js

@@ -153,10 +153,13 @@ function _set(newState) {
 	this._state = assign({}, oldState, newState);
 	this._recompute(changed, this._state);
 	if (this._bind) this._bind(changed, this._state);
+
+	if (this._fragment) {
 		dispatchObservers(this, this._observers.pre, changed, this._state, oldState);
 		this._fragment.p(changed, this._state);
 		dispatchObservers(this, this._observers.post, changed, this._state, oldState);
 	}
+}
 
 function callAll(fns) {
 	while (fns && fns.length) fns.pop()();