$ git clone -n https://src.fedoraproject.org/rpms/freeze.git /var/lib/mock/f41-build-749038-13368/root/chroot_tmpdir/scmroot/freeze
Cloning into '/var/lib/mock/f41-build-749038-13368/root/chroot_tmpdir/scmroot/freeze'...
$ git fetch origin b8465dfde46c9650d44fb8ce6b7a5659d1e01d57:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/freeze
 * [new ref]         b8465dfde46c9650d44fb8ce6b7a5659d1e01d57 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b8465df Eliminate use of obsolete %patchN syntax (#2283636)