Recache textures when returning to ingame from map

Fixes #977.

desktop_version/src/Game.cpp

@@ -7477,6 +7477,7 @@ void Game::mapmenuchange(const enum GameGamestate newgamestate, const bool user_
     gamestate = newgamestate;
     graphics.resumegamemode = false;
     mapheld = true;
+    gameScreen.recacheTextures();
 
     if (prevgamestate == GAMEMODE)
     {