fix to avoid zombies to be cleared when new group update received

app/src/main/java/org/thoughtcrime/securesms/database/GroupDatabase.java

@@ -294,7 +294,6 @@ public class GroupDatabase extends Database implements LokiOpenGroupDatabaseProt
 
     ContentValues contents = new ContentValues();
     contents.put(ZOMBIE_MEMBERS, Address.toSerializedList(members, ','));
-    contents.put(ACTIVE, 1);
     databaseHelper.getWritableDatabase().update(TABLE_NAME, contents, GROUP_ID + " = ?",
             new String[] {groupId});
   }

libsession/src/main/java/org/session/libsession/messaging/sending_receiving/ReceivedMessageHandler.kt

@@ -266,9 +266,11 @@ private fun handleNewClosedGroup(sender: String, sentTimestamp: Long, groupPubli
     val groupID = GroupUtil.doubleEncodeGroupID(groupPublicKey)
     if (storage.getGroup(groupID) != null) {
         // Update the group
+        // clearing zombie list if the group was not active before the update is received
+        if (!storage.isGroupActive(groupID))
+            storage.setZombieMembers(groupID, listOf<String>().map { Address.fromSerialized(it) })
         storage.updateTitle(groupID, name)
         storage.updateMembers(groupID, members.map { Address.fromSerialized(it) })
-        storage.setZombieMembers(groupID, listOf<String>().map { Address.fromSerialized(it) })
     } else {
         storage.createGroup(groupID, name, LinkedList(members.map { Address.fromSerialized(it) }),
             null, null, LinkedList(admins.map { Address.fromSerialized(it) }), formationTimestamp)