$ git clone -n https://src.fedoraproject.org/rpms/wf.git /var/lib/mock/f41-build-726014-13125/root/chroot_tmpdir/scmroot/wf
Cloning into '/var/lib/mock/f41-build-726014-13125/root/chroot_tmpdir/scmroot/wf'...
$ git fetch origin f2499b61ca79461bb9091cb89fafbce9aa5c5378:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wf
 * [new ref]         f2499b61ca79461bb9091cb89fafbce9aa5c5378 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f2499b6 Eliminate use of obsolete %patchN syntax (#2283636)