$ git clone -n https://src.fedoraproject.org/rpms/xmedcon.git /var/lib/mock/f41-build-846702-163186/root/chroot_tmpdir/scmroot/xmedcon
Cloning into '/var/lib/mock/f41-build-846702-163186/root/chroot_tmpdir/scmroot/xmedcon'...
$ git fetch origin fd100aa731c8d611be9e144c6a7353b90b1f9784:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xmedcon
 * [new ref]         fd100aa731c8d611be9e144c6a7353b90b1f9784 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd100aa chore: drop i686