Fix ancestry changed firing when a player joins

Author: Kampfkarren

DataStore2.module.lua

@@ -724,6 +724,7 @@ function DataStore2:__call(dataStoreName, player)
 
 	local playerLeavingConnection
 	playerLeavingConnection = player.AncestryChanged:Connect(function()
+		if player:IsDescendantOf(game) then return end
 		playerLeavingConnection:Disconnect()
 		dataStore:Save()
 		event:Fire()

Tests/tests/DataStore2.spec.lua

@@ -25,6 +25,7 @@ return function()
 
 	local fakePlayer = {}
 	fakePlayer.AncestryChanged = playerRemovingEvent.Event
+	fakePlayer.IsDescendantOf = function() return false end
 	fakePlayer.UserId = 156
 	setmetatable(fakePlayer, {
 		TYPEOF_HACK = "Instance",