Matrix to Discord replies buggy since version 1.2.4

[BrotherIAmPinnedHere]

Describe the bug
As of version 1.2.4, replies seem thoroughly broken when done on Matrix and bridged to Discord. Ordinarily, replies look something like this:

(ignore the first two 'test's)

After version 1.2.4, the quote without preservethreading: true ends up coming through as

[thread:]
test

With preservethreading: true, replies will show up correctly on Discord, but puppeting will break and they will appear to have come from the bridge bot its self rather than the user who made the comments.
(usernames removed as the users did not consent to being posted)

To Reproduce
Uncertain. Running Ubuntu 18.04. There does not appear to be anything untoward in the SystemD logs for Matterbridge and I didn't see anything strange when debugging. I am using replacemessage to prevent abuse of pings through the bridge and a general media upload limit of 8 MB , but other than that basically everything is default.

[42wim]

See https://github.com/42wim/matterbridge/wiki/FAQ#replies-show-the-botname-instead-of-the-usernameavatar

[BrotherIAmPinnedHere]

Is there a setting to restore the original reply system after V1.2.4? Seemed to be the best alternative without Discord directly supporting replies.

[42wim]

What version are you talking about because 1.2.4 is very old