LavalinkGuildConnection CurrentTrack set to default on track replace

Created by: Kriste00

Details

LavalinGuildConnection.CurrentState.CurrentTrack gets set to default when replacing the currently playing track

https://github.com/DSharpPlus/DSharpPlus/blob/2ab9269b1817ea2d2bd3867b3fa23b540b3ef3dc/DSharpPlus.Lavalink/LavalinkGuildConnection.cs#L241-L247

Here the TrackFinish event is invoked with reason REPLACED, and the current track is set to default.

Steps to reproduce

1. Play a song
2. Play another song
3. LavalinGuildConnection.CurrentState.CurrentTrack is set to default, not the 2nd song as it should.

Fix

Add if (e.Reason != TrackEndReason.Replaced) this.CurrentState.CurrentTrack = default;