Room don't have users exept sender if we use lazyLoadMembers

Hello!

When I use `lazyLoadMembers` and try to get all room's joined members using method `room.getJoinedMembers()`, I get only my own user. How can I get all real members of room?

Reproduce the issue using lazyLoadMembers and room.getJoinedMembers() in a room with multiple members. Trace why the method returns only the sender, then verify that it returns all joined members when lazy loading is enabled.

Written by the indexing model from the issue text.