gmbmiwir (aka. Invulnerabletime when Rejoin) is a datapack to restored the following bugs that were fixed in 24w45a:
MC-212 – Fall damage is ignored for a couple of seconds when reloading into LAN or singleplayer worlds.
MC-21650 – Player is immune to damage for a few seconds after saving the world and returning.
MC-160051 – Players can prevent fire damage by reloading world/re-joining server.
Players will have 3 seconds (60ticks) of invincibility after rejoining the game.
gmbmiwir（又名：重新加入时的无敌时间）是一个数据包，用于恢复在 24w45a 中修复的以下 Bug：
MC-212 - 重新载入局域网或单人游戏世界时，坠落伤害会被忽略几秒钟。
MC-21650 - 保存世界并返回后，玩家在几秒钟内免疫伤害。
MC-160051 - 玩家可以通过重新加载世界/重新加入服务器来防止火焰伤害。
重新加入游戏后，玩家将有 3 秒（60 游戏刻）的无敌时间。