Add extra check before rendering emojis (#5879)

webapp/components/post_view/components/reaction_list_container.jsx

@@ -82,10 +82,7 @@ export default class ReactionListContainer extends React.Component {
     }
 
     render() {
-        if (!this.props.post.has_reactions) {
-            return null;
-        }
-
+        if (this.props.post.has_reactions && this.state.reactions.length > 0) {
             return (
                 <ReactionListView
                     post={this.props.post}
@@ -95,4 +92,7 @@ export default class ReactionListContainer extends React.Component {
                 />
             );
         }
+
+        return null;
+    }
 }