Fix instance userCount not updating

src/stores/instance.js

@@ -675,7 +675,7 @@ export const useInstanceStore = defineStore('Instance', () => {
         for (const room of rooms) {
             ref = cachedInstances.get(room.tag);
             if (typeof ref !== 'undefined') {
-                room.ref = ref;
+                Object.assign(room.ref, ref);
             }
         }
         rooms.sort(function (a, b) {

src/stores/user.js

@@ -193,7 +193,15 @@ export const useUserStore = defineStore('User', () => {
             $location: {},
             $homeLocationName: '',
             users: [],
-            instance: {},
+            instance: {
+                id: '',
+                tag: '',
+                $location: {},
+                friendCount: 0,
+                users: [],
+                shortName: '',
+                ref: {}
+            },
             worlds: [],
             avatars: [],
             isWorldsLoading: false,
@@ -1118,10 +1126,8 @@ export const useUserStore = defineStore('User', () => {
                 ref: {}
             };
         }
-        const instanceRef = instanceStore.cachedInstances.get(L.tag);
+        const instanceRef = instanceStore.cachedInstances.get(L.tag) || {};
-        if (typeof instanceRef !== 'undefined') {
+        Object.assign(D.instance.ref, instanceRef);
-            D.instance.ref = instanceRef;
-        }
         D.instance.friendCount = friendCount;
     }