Fix loading pets and mounts

Habitica/src/main/java/com/habitrpg/android/habitica/models/user/OwnedMount.kt

@@ -1,7 +1,5 @@
 package com.habitrpg.android.habitica.models.user
 
-import io.realm.RealmMigration
-import io.realm.RealmModel
 import io.realm.RealmObject
 import io.realm.annotations.PrimaryKey
 
@@ -21,4 +19,17 @@ open class OwnedMount : RealmObject(), OwnedObject {
         }
 
     var owned = false
+
+    override fun equals(other: Any?): Boolean {
+        return if (other?.javaClass == OwnedMount::class.java) {
+            this.combinedKey == (other as OwnedMount).combinedKey
+        } else super.equals(other)
+    }
+
+    override fun hashCode(): Int {
+        var result = combinedKey.hashCode()
+        result = 31 * result + userID.hashCode()
+        result = 31 * result + key.hashCode()
+        return result
+    }
 }

Habitica/src/main/java/com/habitrpg/android/habitica/models/user/OwnedPet.kt

@@ -20,4 +20,17 @@ open class OwnedPet : RealmObject(), OwnedObject {
         }
 
     var trained = 0
+
+    override fun equals(other: Any?): Boolean {
+        return if (other?.javaClass == OwnedPet::class.java) {
+            this.combinedKey == (other as OwnedPet).combinedKey
+        } else super.equals(other)
+    }
+
+    override fun hashCode(): Int {
+        var result = combinedKey.hashCode()
+        result = 31 * result + userID.hashCode()
+        result = 31 * result + key.hashCode()
+        return result
+    }
 }

Habitica/src/main/java/com/habitrpg/android/habitica/utils/UserDeserializer.kt

@@ -6,6 +6,7 @@ import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
 import com.google.gson.JsonParseException
 import com.google.gson.reflect.TypeToken
+import com.habitrpg.android.habitica.extensions.getAsString
 import com.habitrpg.android.habitica.models.PushDevice
 import com.habitrpg.android.habitica.models.QuestAchievement
 import com.habitrpg.android.habitica.models.Tag
@@ -29,7 +30,10 @@ class UserDeserializer : JsonDeserializer<User> {
         val obj = json.asJsonObject
 
         if (obj.has("_id")) {
-            user.id = obj.get("_id").asString
+            user.id = obj.getAsString("_id")
+        }
+        if (obj.has("_v")) {
+            user.versionNumber = obj.get("_v").asInt
         }
 
         if (obj.has("balance")) {