$ git clone -n https://src.fedoraproject.org/rpms/lxc.git /var/lib/mock/f45-build-17802-504/root/chroot_tmpdir/scmroot/lxc
Cloning into '/var/lib/mock/f45-build-17802-504/root/chroot_tmpdir/scmroot/lxc'...
$ git fetch origin 7ddcf99d1a46826ee8234c34f33f1c91a0ccb5ee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lxc
 * [new ref]         7ddcf99d1a46826ee8234c34f33f1c91a0ccb5ee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7ddcf99 Update to 7.0.0.