Core/Battlegrounds: Avoid reset BG and Arena scoreboard stats and BG map achievement criterias when relogin if player was already in the BG (#27280)

(cherry picked from commit fade6fbf4fab1c520de72417cbfb1c7a6dc69c32)

src/server/game/Battlegrounds/Arena.cpp

@@ -42,8 +42,10 @@ Arena::Arena(BattlegroundTemplate const* battlegroundTemplate) : Battleground(ba
 
 void Arena::AddPlayer(Player* player)
 {
+    bool const isInBattleground = IsPlayerInBattleground(player->GetGUID());
     Battleground::AddPlayer(player);
-    PlayerScores[player->GetGUID()] = new ArenaScore(player->GetGUID(), player->GetBGTeam());
+    if (!isInBattleground)
+        PlayerScores[player->GetGUID()] = new ArenaScore(player->GetGUID(), player->GetBGTeam());
 
     if (player->GetBGTeam() == ALLIANCE)        // gold
     {

src/server/game/Battlegrounds/Battleground.cpp

@@ -1121,7 +1121,8 @@ void Battleground::AddPlayer(Player* player)
     }
 
     // reset all map criterias on map enter
-    player->ResetCriteria(CriteriaFailEvent::LeaveBattleground, GetMapId(), true);
+    if (!isInBattleground)
+        player->ResetCriteria(CriteriaFailEvent::LeaveBattleground, GetMapId(), true);
 
     // setup BG group membership
     PlayerAddedToBGCheckIfBGIsRunning(player);

src/server/game/Battlegrounds/Zones/BattlegroundAB.cpp

@@ -222,8 +222,10 @@ void BattlegroundAB::StartingEventOpenDoors()
 
 void BattlegroundAB::AddPlayer(Player* player)
 {
+    bool const isInBattleground = IsPlayerInBattleground(player->GetGUID());
     Battleground::AddPlayer(player);
-    PlayerScores[player->GetGUID()] = new BattlegroundABScore(player->GetGUID(), player->GetBGTeam());
+    if (!isInBattleground)
+        PlayerScores[player->GetGUID()] = new BattlegroundABScore(player->GetGUID(), player->GetBGTeam());
 }
 
 void BattlegroundAB::RemovePlayer(Player* /*player*/, ObjectGuid /*guid*/, uint32 /*team*/)

src/server/game/Battlegrounds/Zones/BattlegroundAV.cpp

@@ -436,8 +436,10 @@ void BattlegroundAV::StartingEventOpenDoors()
 
 void BattlegroundAV::AddPlayer(Player* player)
 {
+    bool const isInBattleground = IsPlayerInBattleground(player->GetGUID());
     Battleground::AddPlayer(player);
-    PlayerScores[player->GetGUID()] = new BattlegroundAVScore(player->GetGUID(), player->GetBGTeam());
+    if (!isInBattleground)
+        PlayerScores[player->GetGUID()] = new BattlegroundAVScore(player->GetGUID(), player->GetBGTeam());
 }
 
 void BattlegroundAV::EndBattleground(uint32 winner)

src/server/game/Battlegrounds/Zones/BattlegroundEY.cpp

@@ -380,8 +380,10 @@ void BattlegroundEY::UpdatePointsIcons(uint32 Team, uint32 Point)
 
 void BattlegroundEY::AddPlayer(Player* player)
 {
+    bool const isInBattleground = IsPlayerInBattleground(player->GetGUID());
     Battleground::AddPlayer(player);
-    PlayerScores[player->GetGUID()] = new BattlegroundEYScore(player->GetGUID(), player->GetBGTeam());
+    if (!isInBattleground)
+        PlayerScores[player->GetGUID()] = new BattlegroundEYScore(player->GetGUID(), player->GetBGTeam());
 
     m_PlayersNearPoint[EY_POINTS_MAX].push_back(player->GetGUID());
 }

src/server/game/Battlegrounds/Zones/BattlegroundIC.cpp

@@ -242,8 +242,10 @@ void BattlegroundIC::StartingEventOpenDoors()
 
 void BattlegroundIC::AddPlayer(Player* player)
 {
+    bool const isInBattleground = IsPlayerInBattleground(player->GetGUID());
     Battleground::AddPlayer(player);
-    PlayerScores[player->GetGUID()] = new BattlegroundICScore(player->GetGUID(), player->GetBGTeam());
+    if (!isInBattleground)
+        PlayerScores[player->GetGUID()] = new BattlegroundICScore(player->GetGUID(), player->GetBGTeam());
 
     if (nodePoint[NODE_TYPE_QUARRY].nodeState == (player->GetTeamId() == TEAM_ALLIANCE ? NODE_STATE_CONTROLLED_A : NODE_STATE_CONTROLLED_H))
         player->CastSpell(player, SPELL_QUARRY, true);

src/server/game/Battlegrounds/Zones/BattlegroundSA.cpp

@@ -476,8 +476,10 @@ void BattlegroundSA::FillInitialWorldStates(WorldPackets::WorldState::InitWorldS
 
 void BattlegroundSA::AddPlayer(Player* player)
 {
+    bool const isInBattleground = IsPlayerInBattleground(player->GetGUID());
     Battleground::AddPlayer(player);
-    PlayerScores[player->GetGUID()] = new BattlegroundSAScore(player->GetGUID(), player->GetBGTeam());
+    if (!isInBattleground)
+        PlayerScores[player->GetGUID()] = new BattlegroundSAScore(player->GetGUID(), player->GetBGTeam());
 
     SendTransportInit(player);
 

src/server/game/Battlegrounds/Zones/BattlegroundWS.cpp

@@ -228,8 +228,10 @@ void BattlegroundWS::StartingEventOpenDoors()
 
 void BattlegroundWS::AddPlayer(Player* player)
 {
+    bool const isInBattleground = IsPlayerInBattleground(player->GetGUID());
     Battleground::AddPlayer(player);
-    PlayerScores[player->GetGUID()] = new BattlegroundWGScore(player->GetGUID(), player->GetBGTeam());
+    if (!isInBattleground)
+        PlayerScores[player->GetGUID()] = new BattlegroundWGScore(player->GetGUID(), player->GetBGTeam());
 }
 
 void BattlegroundWS::RespawnFlag(uint32 Team, bool captured)