Desktop client crashes on trying to re-enter a group call

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Steps to reproduce

1. Start a group call
2. Change to any 1:1 chat room with CTRL-/⌘-Click
3. Try to change back to group call room by clicking on the room

Expected behaviour

"Leave this page" should return to the 1:1 window and (maybe) "join here shouldn't be available at all:

Actual behaviour

• On windows 11 systems the 1:1-chat window crashes the client. It needs to be restarted again.

• On macOS (10.15.) the 1:1 window crashes (you can close it) and in the back you drop out of the group call:

Desktop client

Talk Desktop client version: v0.30.0

Operating system: Windows 11 / macOS 10.15

Operating system version: Windows 11 / (In case of Linux, provide the distribution.)

Microphone available: yes/no

Camera available: yes/no

Server

Nextcloud version: 30.0.0

Talk app version: 20.0.0

Custom Signaling server configured: yes (2.0.0)

Custom TURN server configured: yes

Custom STUN server configured: yes

Logs

No logs available.

Client log

----------------------------System report----------------------------
Nextcloud Talk Desktop version 0.39.0

• Built with Nextcloud Talk version 20.0.1

Connected to:

• Server address: https://try.nextcloud.com/ltd/sebastian
• Nextcloud Server version 30.0.0
• Nextcloud Talk version 20.0.0

OS: Darwin 24.0.0 (Darwin Kernel Version 24.0.0: Tue Sep 24 23:36:26 PDT 2024; root:xnu-11215.1.12~1/RELEASE_ARM64_T8103)
----------------------------System report----------------------------

Insert your browser log here, this could for example include:
a) The javascript console log
b) The network log
c) ...

Start by reproducing the documented sequence: enter a group call, switch to a 1:1 room with CTRL-/⌘-Click, then select the group-call room again. Investigate the desktop room-switching and call re-entry entry points using the reported Windows and macOS environments. Done means re-entering the group call no longer crashes the client and the navigation behavior matches the expected description.