minor debouncing fixes for user card

app/assets/javascripts/discourse/controllers/user-card.js.es6

@@ -7,6 +7,7 @@ export default ObjectController.extend({
   username: null,
   participant: null,
   avatar: null,
+  userLoading: null,
 
   postStream: Em.computed.alias('controllers.topic.postStream'),
   enoughPostsForFiltering: Em.computed.gte('participant.post_count', 2),
@@ -60,6 +61,11 @@ export default ObjectController.extend({
       return;
     }
 
+    if (username === currentUsername && this.get('userLoading') === username) {
+      // debounce
+      return;
+    }
+
     this.set('participant', null);
 
     // Retrieve their participants info
@@ -70,8 +76,12 @@ export default ObjectController.extend({
 
     var self = this;
     self.set('user', null);
+
+    self.set('userLoading', username);
     Discourse.User.findByUsername(username).then(function (user) {
       self.setProperties({ user: user, avatar: user, visible: true});
+    }).finally(function(){
+      self.set('userLoading', null);
     });
   },
 

app/assets/javascripts/discourse/views/user-card.js.es6

@@ -33,6 +33,10 @@ export default Discourse.View.extend(CleansUp, {
         if ($target.closest('.trigger-user-card').length > 0) { return; }
         if (self.$().has(e.target).length !== 0) { return; }
 
+        if ($target.data("userCard")|| $target.closest('a.mention')) {
+          return;
+        }
+
         self.get('controller').close();
       }