$ git clone -n https://src.fedoraproject.org/rpms/tlpi.git /var/lib/mock/f39-build-2440979-60811/root/chroot_tmpdir/scmroot/tlpi
Cloning into '/var/lib/mock/f39-build-2440979-60811/root/chroot_tmpdir/scmroot/tlpi'...
$ git fetch origin b9fc5f4852cf7cca245956a2238afbc1a6552560:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tlpi
 * [new ref]         b9fc5f4852cf7cca245956a2238afbc1a6552560 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9fc5f4 Update to version 240109