Jitsi would crash if it tried to call retrieveParticipantsInfo when it quit and rejoined

[XuGuoJian]

Steps to reproduce

When Jitsi is minimized, click the leave button of the chat room, and when you rejoin, if you call retrieveParticipantsInfo while joining a multiplayer video, you'll see a crash in that video 当Jitsi最小化时，点击聊天室的离开按钮，当重新加入时，如果在加入多人视频时调用了retrieveParticipantsInfo 会出现该视频中的崩溃情况

https://github.com/user-attachments/assets/757ee616-c289-4eb9-be50-bd730bd152b5

Outcome

retrieveParticipantsInfo can be used normally to obtain the currently participating video personnel and solve the flash and retreat situation 能够正常使用retrieveParticipantsInfo去获取到当前参与的视频人员，解决闪退情况

Your phone model

各类型的手机型号

Operating system version

iOS 16

Application version

0.27.6

Homeserver

No response

Will you send logs?

Yes