Impossible to leave studies

[glbert-does]

Exact URL of where the bug happened

any study that has more than one chapter, e.g.
https://lichess.org/study/RgKKMjsv

Steps to reproduce the bug

1. go to https://lichess.org/study/RgKKMjsv or any study that has more than one chapter.
2. add your account as a member. do not make it a contributor though.

What did you expect to happen?

i expected the member list to be visible to the added account, so the little leave button can be clicked.

What happened instead?

the member list was invisible, the added account can only see the chapter list. there is no way for them to leave the study.

Operating system

Debian Sid

Browser and version (or alternate access method)

Chromium 124

Additional information

it is possible to leave studies when an account is made a contributor, or when the study has only one chapter. either of these cases will make the member list visible, and thus give the option to leave.

source: https://lichess.org/forum/lichess-feedback/how-to-leave-anothers-player-studio-not-created-by-myself