FTUE: history visibility settings lie in E2E rooms

[ara4n]

given we can't see history from before you join an E2E room, the history visibility settings should not claim that you can.

[valkum]

Just hit this with a room on our homeserver. It seems RiotX handles this differently, as it shows the encrypted events before the invite (without a way to request keys from the senders (would that be even possible?)). Riot-web and desktop just don't show anything. Even non-encrypted previous events (before e2e was activated) are hidden.
May I suggest to show at least some form of banner (like the encryption activated banner in riotX) that informs the user about this fact? Could be a short term solution before much time flies by for reworking the history wording or something else.

[t3chguy]

Even non-encrypted previous events (before e2e was activated) are hidden.

it has no way of knowing they exist, if riot-web/desktop see undecryptable events from before your join then they hide them for a better first time user experience

[jryans]

can't see history from before you join an E2E room

To be a bit more precise (and to verify my own understanding), history starts at the point you were invited, not joined, right?

[t3chguy]

Yes, my bad, assuming the right join rules;

[t3chguy]

Unclear what we want done here, blindly hiding those settings seems wrong. Probably needs better copy for e2ee rooms?

[JonathanReifer]

+1 on this issue, right now "Members only (since the point in time of selecting this option)" seems to actually work like "Members only (since they were invited)" in e2ee rooms. At the very least, I'd grey-out that option for e2ee rooms, but it would be fantastic if that was actually an functional option.

[jryans]

In the duplicate issue #14889, @lampholder said:

When you join an encrypted room you don't see the message history.
This makes sense, because a bunch of UISIs you can never fix is a nice thing to avoid.

However, it is suprising because:

• the room settings still say you should have access to old messages
• joining the room, you have no signal as to whether you're landing in a brand new room or one in which discussion is already in flight

This last point is probably more important - I find landing in such a room I don't know quite how to behave.

[avalenn]

This is even more confusing when you leave the room and then rejoin it.
On element-android I can see the old messages (excepting those posted when I was not in the room which are rightfully marked as impossible to decrypt).
On element-web my history is completely truncated at my last join, even if I would be able to decrypt some of the older messages.