$ git clone -n https://src.fedoraproject.org/rpms/facter.git /var/lib/mock/f39-build-2036974-48066/root/chroot_tmpdir/scmroot/facter
Cloning into '/var/lib/mock/f39-build-2036974-48066/root/chroot_tmpdir/scmroot/facter'...
$ git fetch origin 0dc70e0eecdb9305fa03aa0a20abe8c5227ebcab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/facter
 * [new ref]         0dc70e0eecdb9305fa03aa0a20abe8c5227ebcab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0dc70e0 Update to 4.5.1 (fixes rhbz#2185063)