An erroneous Leave event is generated in Presence

[Kuffs2205]

I'm not sure if this is an issue with Supabase, the client library or just me misunderstanding something but there appears to be an erroneous Leave event that is generated when I leave and rejoin a channel. I still appear to be connected even though I apparently left as broadcasts are still being sent and received normally.

The computer that "leaves" does not receive the Leave event but I'm assuming that is normal as it would not make much sense in normal operation.

I've uploaded a demo project to https://github.com/Kuffs2205/BroadcastTest and also a video showing the issue to https://github.com/Kuffs2205/BroadcastTest/blob/master/Presence.mp4

[acupofjose]

Very interesting! Yeah let me debug a bit - that doesn't seem to be working as intended. Thanks for providing a video and a MRE!

[Kuffs2205]

I did the video because I'm way too much of an overexplainer.:)

I do get a stray Leave event occasionally on some clients but not all even without the disconnect/reconnect I describe above.

The disconnect scenario is just the one that I could reliably duplicate so that is probably the easiest to look for.

[acupofjose]

Alright! You found a stray bug where Disconnect would be called and, if the channel instance still existed, would attempt to rejoin automatically instead of staying dead (I missed a flag). Should be fixed now in realtime-csharp@5.0.3. Could you verify for me?

You can see the same on https://multiplayer-csharp.azurewebsites.net if you open two browser windows (one regular, one incognito) with the debug consoles and mess around with clicking the "Connect"/"Disconnect" button on the bottom left.

[Kuffs2205]

That seems good so far thank you. Happy to help squash the bugs.

[acupofjose]

Good! I'll push it up to the next version of supabase-csharp then.