Synchronize changes from 1.6 master branch [ci skip]

695eb16 Fix setElementDoubleSided resets after building manipulations (PR #3976)
38ef7ac Update client en_US pot

Author: github-actions[bot]

Client/mods/deathmatch/logic/CClientBuilding.cpp

@@ -133,6 +133,11 @@ void CClientBuilding::Create()
 
     m_pBuilding = g_pGame->GetPools()->GetBuildingsPool().AddBuilding(this, m_usModelId, &m_vPos, &vRot4D, m_interior);
 
+    if (!m_pBuilding)
+        return;
+
+    m_pBuilding->SetBackfaceCulled(!m_bDoubleSided);
+
     if (!m_usesCollision)
     {
         m_pBuilding->SetUsesCollision(m_usesCollision);