$ git clone -n https://src.fedoraproject.org/rpms/python-rpmautospec.git /var/lib/mock/f45-build-32850-664/root/chroot_tmpdir/scmroot/python-rpmautospec
Cloning into '/var/lib/mock/f45-build-32850-664/root/chroot_tmpdir/scmroot/python-rpmautospec'...
$ git fetch origin 68d84882c4a33c1264f28dc185a33341708dd8c8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-rpmautospec
 * [new ref]         68d84882c4a33c1264f28dc185a33341708dd8c8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 68d8488 Update to 0.8.5