Use new 5.13.0 explicit VoxelManip free

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
           - { image: 'registry.gitlab.com/minetest/minetest/server:5.0.1', mtg: false }
           - { image: 'registry.gitlab.com/minetest/minetest/server:5.5.1', mtg: false }
           - { image: 'ghcr.io/minetest/minetest:5.10.0', mtg: true }
-          - { image: 'ghcr.io/luanti-org/luanti', mtg: true } # latest git
+          - { image: 'ghcr.io/luanti-org/luanti:master', mtg: true } # latest git
     steps:
     - uses: actions/checkout@v4
 

worldedit/common.lua

@@ -133,7 +133,9 @@ function mh.finish(manip, data)
 		manip:set_data(data)
 	end
 	manip:write_to_map()
-	manip:update_map()
+	if manip.close ~= nil then
+		manip:close() -- explicitly free memory
+	end
 end
 
 

worldedit/manipulations.lua

@@ -56,8 +56,7 @@ function worldedit.set_param2(pos1, pos2, param2)
 
 	-- Update map
 	manip:set_param2_data(param2_data)
-	manip:write_to_map()
-	manip:update_map()
+	mh.finish(manip)
 
 	return worldedit.volume(pos1, pos2)
 end
@@ -269,8 +268,10 @@ function worldedit.fixlight(pos1, pos2)
 	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
 
 	local vmanip = minetest.get_voxel_manip(pos1, pos2)
-	vmanip:write_to_map()
-	vmanip:update_map() -- this updates the lighting
+	vmanip:write_to_map() -- this updates the lighting
+	if vmanip.close ~= nil then
+		vmanip:close()
+	end
 
 	return worldedit.volume(pos1, pos2)
 end