$ git clone -n https://src.fedoraproject.org/rpms/apt.git /var/lib/mock/f41-build-854898-167000/root/chroot_tmpdir/scmroot/apt
Cloning into '/var/lib/mock/f41-build-854898-167000/root/chroot_tmpdir/scmroot/apt'...
$ git fetch origin 0878a8d776d1596835fcff7ba73fab5561ca41ad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/apt
 * [new ref]         0878a8d776d1596835fcff7ba73fab5561ca41ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0878a8d Update to 2.9.8 upstream release