$ git clone -n https://src.fedoraproject.org/rpms/llhttp.git /var/lib/mock/f39-build-1502470-34921/root/chroot_tmpdir/scmroot/llhttp
Cloning into '/var/lib/mock/f39-build-1502470-34921/root/chroot_tmpdir/scmroot/llhttp'...
$ git fetch origin 99ff5de1e740a576cd8a984c439281e66dc5d77e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/llhttp
 * [new ref]         99ff5de1e740a576cd8a984c439281e66dc5d77e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 99ff5de Update to 8.1.1 (close RHBZ#2216591)