Fix "safe region" functionality errornously rejecting pos1-only comma…

…nds (e.g. //sphere)

worldedit_commands/init.lua

@@ -13,7 +13,7 @@ end
 dofile(minetest.get_modpath("worldedit_commands") .. "/cuboid.lua")
 dofile(minetest.get_modpath("worldedit_commands") .. "/mark.lua")
 dofile(minetest.get_modpath("worldedit_commands") .. "/wand.lua")
-local safe_region, check_region = dofile(minetest.get_modpath("worldedit_commands") .. "/safe.lua")
+local safe_region, check_region, reset_pending = dofile(minetest.get_modpath("worldedit_commands") .. "/safe.lua")
 
 local function get_position(name) --position 1 retrieval function for when not using `safe_region`
 	local pos1 = worldedit.pos1[name]
@@ -198,6 +198,8 @@ minetest.register_chatcommand("/reset", {
 		worldedit.mark_pos1(name)
 		worldedit.mark_pos2(name)
 		worldedit.set_pos[name] = nil
+		--make sure the user does not try to confirm an operation after resetting pos:
+		reset_pending(name)
 		worldedit.player_notify(name, "region reset")
 	end,
 })

worldedit_commands/safe.lua

@@ -30,6 +30,10 @@ local function safe_region(callback, nodes_needed)
 	end
 end
 
+local function reset_pending(name)
+	safe_region_callback[name], safe_region_param[name] = nil, nil
+end
+
 minetest.register_chatcommand("/y", {
 	params = "",
 	description = "Confirm a pending operation",
@@ -40,15 +44,8 @@ minetest.register_chatcommand("/y", {
 			return
 		end
 
-		--obtain positions
-		local pos1, pos2 = worldedit.pos1[name], worldedit.pos2[name]
-		if pos1 == nil or pos2 == nil then
-			worldedit.player_notify(name, "no region selected")
-			return
-		end
-
 		safe_region_callback[name], safe_region_param[name] = nil, nil --reset pending operation
-		callback(name, param, pos1, pos2)
+		callback(name, param)
 	end,
 })
 
@@ -64,5 +61,5 @@ minetest.register_chatcommand("/n", {
 	end,
 })
 
-return safe_region, check_region
 
+return safe_region, check_region, reset_pending