They've just posted an update saying that the issue was fixed on July 21. It's certainly good that it's fixed...
But that's still over 7 months before it was fixed, including a 2 month period where people were still bumping the issue asking for help with no response from maintainers (afterwards, the issue went quiet until ~2 weeks ago). And there was at least one other issue on the same problem a few months later that received no response [1].
I understand the team is probably understaffed given the vast number of open issues (1300+) they have, many with no response, and I can sympathize with the challenges of being a small team developing an app used by millions, but they probably need to figure out a better way to triage...
[1] https://github.com/signalapp/Signal-Android/issues/11137