Fix anchor respawn acting as a bed respawn when using the end portal

[HexedHero]

Following #5465
The PlayerRespawnEvent uses flag2 for deciding if the respawn was from an anchor or not but flag2 is only used for removing a charge from the Anchor which the End Portal & Credits respawn does not, so when you enter the End Portal with an Anchor respawn set, it will fire the event with bed:true and anchor:false which is incorrect, this patch fixes this issue.

I tested with:

    @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
    public void a(PlayerRespawnEvent event) {
        Bukkit.getLogger().warning("RESPAWN " + event.isBedSpawn() + " " + event.isAnchorSpawn());
    }

I tested this with normal /kill deaths and using the End portal with & without bed and anchor respawns. It all lines up correctly.

Test results:

[23:34:26] [Async Chat Thread - #0/INFO]: <HexedHero> Normal death
[23:34:29] [Server thread/WARN]: RESPAWN false false
[23:35:15] [Async Chat Thread - #0/INFO]: <HexedHero> Bed - No Anchor
[23:35:19] [Server thread/WARN]: RESPAWN true false
[23:35:35] [Async Chat Thread - #0/INFO]: <HexedHero> Anchor - No Bed
[23:35:40] [Server thread/WARN]: RESPAWN false true
[23:37:05] [Async Chat Thread - #1/INFO]: <HexedHero> End Portal/Credits - No Bed - No Anchor
[23:37:07] [Server thread/WARN]: RESPAWN false false
[23:36:49] [Async Chat Thread - #1/INFO]: <HexedHero> End Portal/Credits - Bed - No Anchor
[23:36:47] [Server thread/WARN]: RESPAWN true false
[23:37:42] [Async Chat Thread - #1/INFO]: <HexedHero> End Portal/Credits - Anchor - No Bed
[23:37:46] [Server thread/WARN]: RESPAWN false true

[kennytv]

Thanks