$ git clone -n https://src.fedoraproject.org/rpms/mcrouter.git /var/lib/mock/f38-build-719879-97314/root/chroot_tmpdir/scmroot/mcrouter
Cloning into '/var/lib/mock/f38-build-719879-97314/root/chroot_tmpdir/scmroot/mcrouter'...
$ git fetch origin 3c56891bbacdbf6dd0be4c97f525a881db44c6d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mcrouter
 * [new ref]         3c56891bbacdbf6dd0be4c97f525a881db44c6d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c56891 Update to 2023.04.24.00