Fix "db" command

sources/Commands/ACommandDB.uc

@@ -113,8 +113,15 @@ protected function BuildData(CommandDataBuilder builder)
 
 protected function PushPlayer(EPlayer nextPlayer, Database callDatabase)
 {
-    queueWaitingListPlayers[queueWaitingListPlayers.length] =
+    local EPlayer playerCopy;
-        EPlayer(nextPlayer.Copy());
+
+    if (nextPlayer != none) {
+        playerCopy = EPlayer(nextPlayer.Copy());
+    }
+    if (callDatabase != none) {
+        callDatabase.NewRef();
+    }
+    queueWaitingListPlayers[queueWaitingListPlayers.length] = playerCopy;
     queueWaitingListDatabases[queueWaitingListDatabases.length] = callDatabase;
 }
 
@@ -128,9 +135,10 @@ protected function EPlayer PopPlayer(Database relevantDatabase)
 
     while (i < queueWaitingListDatabases.length)
     {
-        if (queueWaitingListDatabases[i] != relevantDatabase)
+        if (queueWaitingListDatabases[i].IsEqual(relevantDatabase))
         {
             result = queueWaitingListPlayers[i];
+            queueWaitingListDatabases[i].FreeSelf();
             queueWaitingListPlayers.Remove(i, 1);
             queueWaitingListDatabases.Remove(i, 1);
             break;
@@ -235,11 +243,11 @@ private function DBPointerPair TryLoadingDB(BaseText databaseLink)
     if (databaseLink == none) {
         return result;
     }
-    result.database = _.db.Load(databaseLink);
+    result.database = _server.db.Load(databaseLink);
     if (result.database == none) {
         return result;
     }
-    result.pointer = _.db.GetPointer(databaseLink);
+    result.pointer = _server.db.GetPointer(databaseLink);
     return result;
 }
 
@@ -248,12 +256,12 @@ protected function CreateDatabase(EPlayer instigator, Text databaseName)
     if (instigator == none) {
         return;
     }
-    if (_.db.ExistsLocal(databaseName))
+    if (_server.db.ExistsLocal(databaseName))
     {
         callerConsole.WriteLine(T(TDB_ALREADY_EXISTS));
         return;
     }
-    if (_.db.NewLocal(databaseName) != none) {
+    if (_server.db.NewLocal(databaseName) != none) {
         callerConsole.WriteLine(T(TDB_CREATED));
     }
     else {
@@ -266,7 +274,7 @@ protected function DeleteDatabase(EPlayer instigator, Text databaseName)
     if (instigator == none) {
         return;
     }
-    if (_.db.DeleteLocal(databaseName)) {
+    if (_server.db.DeleteLocal(databaseName)) {
         callerConsole.WriteLine(T(TDA_DELETED));
     }
     else {
@@ -283,7 +291,7 @@ protected function ListDatabases(EPlayer instigator)
     if (instigator == none) {
         return;
     }
-    availableDatabases = _.db.ListLocal();
+    availableDatabases = _server.db.ListLocal();
     console = callerConsole;
     console.Write(T(TAVAILABLE_DATABASES));
     for (i = 0; i < availableDatabases.length; i += 1)