Merge branch 'master' into jgrpp

# Conflicts:
#	.github/workflows/commit-checker.yml
#	src/industry_cmd.cpp
#	src/industry_gui.cpp
#	src/landscape.cpp
#	src/linkgraph/linkgraph_gui.cpp
#	src/order_base.h
#	src/order_cmd.cpp
#	src/order_gui.cpp
#	src/saveload/afterload.cpp
#	src/saveload/league_sl.cpp
#	src/saveload/saveload.h
#	src/script/api/script_object.hpp
#	src/script/squirrel_helper.hpp
#	src/settings_table.cpp
#	src/station_cmd.cpp
#	src/table/settings.h.preamble
#	src/tree_cmd.cpp
#	src/tree_map.h
#	src/vehicle.cpp
#	src/waypoint_cmd.cpp

src/autoreplace_cmd.cpp

@@ -56,9 +56,6 @@ bool CheckAutoreplaceValidity(EngineID from, EngineID to, CompanyID company)
 {
 	assert(Engine::IsValidID(from) && Engine::IsValidID(to));
 
-	/* we can't replace an engine into itself (that would be autorenew) */
-	if (from == to) return false;
-
 	const Engine *e_from = Engine::Get(from);
 	const Engine *e_to = Engine::Get(to);
 	VehicleType type = e_from->type;