$ git clone -n https://src.fedoraproject.org/rpms/packit.git /var/lib/mock/f39-build-2044745-48720/root/chroot_tmpdir/scmroot/packit
Cloning into '/var/lib/mock/f39-build-2044745-48720/root/chroot_tmpdir/scmroot/packit'...
$ git fetch origin a6516420f0265a65725e76d1fcdecad70e0476a6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/packit
 * [new ref]         a6516420f0265a65725e76d1fcdecad70e0476a6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a651642 [packit] 0.87.1 upstream release