restore forbidden room

[oeai]

i've made a room public, then i decided to clean it with new text and deleted the room,
it was riot.im and it was moved to history, then i press forget and it was removed.
But it was written in my community and the community room list is now stuck and not resolving.
Now i try to join the room - no luck

request failed: CORS request rejected:

i wanted to create the room once again to solve it - the room name is not free
i did relog, tried with html client - no way.

i want to restore the room and join it / change name or make the room name free somehow
i need my community room list working (is it resolving by name or UID?)

room previews are disabled (M_FORBIDDEN)

[anoadragon453]

Seems that querying the room list of a group which contains a room with 0 members in it causes Synapse to 500. This is partially documented already in #4891 and thus I'm closing this issue as a duplicate.

However, I've also submitted a potential fix for this here: #7465

[oeai]

is the group servlet means that the name of forbidden group will also be deleted from name_search for new group? i think it should also be nulled or modified with _deleted+group_name, so the admin will see it in history by uid and cname. to be able to make new group with same name.
and even in community list this can also be mentioned with new _deleted name.
actually i would leave it for admin the ability to get back in the room , just by modifying room_status to "join" for 2 days maybe, then clean history of the room.
when i did try to do the change of status manually, i had error that there's no server.