Fix group add/remove/rename not updating template replacement GUI in MP

src/group_cmd.cpp

@@ -342,6 +342,7 @@ CommandCost CmdCreateGroup(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
 
 		InvalidateWindowData(GetWindowClassForVehicleType(vt), VehicleListIdentifier(VL_GROUP_LIST, vt, _current_company).Pack());
 		InvalidateWindowData(WC_COMPANY_COLOUR, g->owner, g->vehicle_type);
+		InvalidateWindowData(WC_TEMPLATEGUI_MAIN, 0, 0, 0);
 	}
 
 	return CommandCost();
@@ -401,6 +402,7 @@ CommandCost CmdDeleteGroup(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
 
 		InvalidateWindowData(GetWindowClassForVehicleType(vt), VehicleListIdentifier(VL_GROUP_LIST, vt, _current_company).Pack());
 		InvalidateWindowData(WC_COMPANY_COLOUR, _current_company, vt);
+		InvalidateWindowData(WC_TEMPLATEGUI_MAIN, 0, 0, 0);
 	}
 
 	return CommandCost();
@@ -471,6 +473,7 @@ CommandCost CmdAlterGroup(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
 		InvalidateWindowData(WC_REPLACE_VEHICLE, g->vehicle_type, 1);
 		InvalidateWindowData(GetWindowClassForVehicleType(g->vehicle_type), VehicleListIdentifier(VL_GROUP_LIST, g->vehicle_type, _current_company).Pack());
 		InvalidateWindowData(WC_COMPANY_COLOUR, g->owner, g->vehicle_type);
+		InvalidateWindowData(WC_TEMPLATEGUI_MAIN, 0, 0, 0);
 	}
 
 	return CommandCost();

src/group_gui.cpp

@@ -946,7 +946,6 @@ public:
 	void OnQueryTextFinished(char *str) override
 	{
 		if (str != nullptr) DoCommandP(0, this->group_rename, 0, CMD_ALTER_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_RENAME), nullptr, str);
-		InvalidateWindowData(WC_TEMPLATEGUI_MAIN, 0, 0, 0);
 		this->group_rename = INVALID_GROUP;
 	}