From f10d579d9c45bdddb7f2ae1935d74821b9c6a8b3 Mon Sep 17 00:00:00 2001
From: NO11 <no11@noreply.git.minetest.land>
Date: Sun, 19 Sep 2021 12:07:21 +0000
Subject: [PATCH] Only change fly priv on join if it wasn't revoked or granted

---
 mods/MISC/mcl_privs/init.lua | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/mods/MISC/mcl_privs/init.lua b/mods/MISC/mcl_privs/init.lua
index 1d1465676..c63f7c5c5 100644
--- a/mods/MISC/mcl_privs/init.lua
+++ b/mods/MISC/mcl_privs/init.lua
@@ -6,6 +6,10 @@ minetest.register_privilege("maphack", {
 
 minetest.register_on_joinplayer(function(player)
 	local name = player:get_player_name()
+
+	local meta = player:get_meta()
+	if meta:get_int("fly_changed") == 1 then return end
+
 	local fly = nil
 	if minetest.is_creative_enabled(name) then
 		fly = true
@@ -14,3 +18,13 @@ minetest.register_on_joinplayer(function(player)
 		fly = fly,
 	})
 end)
+
+for _, action in pairs({ "grant", "revoke" }) do
+	minetest["register_on_priv_" .. action](function(name, _, priv)
+		if priv == "fly" then
+			local player = minetest.get_player_by_name(name)
+			local meta = player:get_meta()
+			meta:set_int("fly_changed", 1)
+		end
+	end)
+end
\ No newline at end of file