Merge branch 'master' into jgrpp

# Conflicts:
#	regression/regression/result.txt
#	src/autoreplace_cmd.cpp
#	src/industry_gui.cpp
#	src/landscape.cpp
#	src/network/network_content.cpp
#	src/newgrf_roadstop.cpp
#	src/pathfinder/yapf/yapf_ship.cpp
#	src/road_gui.cpp
#	src/saveload/ai_sl.cpp
#	src/saveload/saveload.h
#	src/saveload/vehicle_sl.cpp
#	src/station.cpp
#	src/station_gui.cpp
#	src/video/cocoa/cocoa_ogl.h
#	src/video/sdl2_opengl_v.h
#	src/video/video_driver.hpp
#	src/video/win32_v.h
#	src/widget_type.h
#	src/widgets/dropdown.cpp
#	src/widgets/dropdown_type.h
#	src/window.cpp

src/landscape.cpp

@@ -670,6 +670,8 @@ CommandCost CmdClearArea(TileIndex tile, DoCommandFlag flags, uint32_t p1, uint3
 	const Company *c = (flags & (DC_AUTO | DC_BANKRUPT)) ? nullptr : Company::GetIfValid(_current_company);
 	int limit = (c == nullptr ? INT32_MAX : GB(c->clear_limit, 16, 16));
 
+	if (tile != p1) flags |= DC_FORCE_CLEAR_TILE;
+
 	OrthogonalOrDiagonalTileIterator iter(tile, p1, HasBit(p2, 0));
 	for (; *iter != INVALID_TILE; ++iter) {
 		TileIndex t = *iter;