Can someone test TogglePreHistoryHiddenRequest? After creating a group, migrating it to supergroup I've tried to set to Visible the Chat History for new members.

First attempt
await userbot(functions.channels.TogglePreHistoryHiddenRequest(
   channel=group,
   enabled=True
))
>>> telethon.errors.rpcerrorlist.ChatNotModifiedError: The chat or channel wasn't modified (title, invites, username, admins, etc. are the same) (caused by TogglePreHistoryHiddenRequest)
obviously the Chat History for new members option still set to Hidden

Second attempt
await userbot(functions.channels.TogglePreHistoryHiddenRequest(
   channel=group,
   enabled=False
))
No errors, but the Chat History for new members hasn't change and still set to Hidden


edit: shouldn't migrating the group be enough? in the official client when you set an username to a group it will become a supergroup and there will not be the option to Hide the old messages to new members.

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