From f1a9d4fa8694e246d7d1cf11b87e11de1a231ac3 Mon Sep 17 00:00:00 2001
From: Kevin Schaaf <kschaaf@google.com>
Date: Wed, 10 Apr 2019 14:55:40 -0700
Subject: [PATCH] Simplify

---
 lib/utils/templatize.js | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/lib/utils/templatize.js b/lib/utils/templatize.js
index 7cdcb8ca4a..859c8a2f8c 100644
--- a/lib/utils/templatize.js
+++ b/lib/utils/templatize.js
@@ -364,11 +364,7 @@ function createTemplatizerClass(template, templateInfo, options) {
  */
 function addPropagateEffects(template, templateInfo, options) {
   let userForwardHostProp = options.forwardHostProp;
-  const hasHostProps = templateInfo.hasHostProps ||
-    (templateInfo.hasHostProps = 
-      Boolean(templateInfo.hostProps && 
-        Object.keys(templateInfo.hostProps).length));
-  if (userForwardHostProp && hasHostProps) {
+  if (userForwardHostProp && templateInfo.hasHostProps) {
     // Provide data API and property effects on memoized template class
     let klass = templateInfo.templatizeTemplateClass;
     if (!klass) {
@@ -427,6 +423,9 @@ function addNotifyEffects(klass, template, templateInfo, options) {
   }
   if (options.forwardHostProp && template.__dataHost) {
     for (let hprop in hostProps) {
+      if (!templateInfo.hasHostProps) {
+        templateInfo.hasHostProps = true;
+      }
       klass.prototype._addPropertyEffect(hprop,
         klass.prototype.PROPERTY_EFFECT_TYPES.NOTIFY,
         {fn: createNotifyHostPropEffect()});