$ git clone -n https://src.fedoraproject.org/rpms/python-rpmautospec-core.git /var/lib/mock/f40-build-2267699-54710/root/chroot_tmpdir/scmroot/python-rpmautospec-core
Cloning into '/var/lib/mock/f40-build-2267699-54710/root/chroot_tmpdir/scmroot/python-rpmautospec-core'...
$ git fetch origin 49cc485b5dc30b0cc3f5e36bd959a989ecd193c8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-rpmautospec-core
 * [new ref]         49cc485b5dc30b0cc3f5e36bd959a989ecd193c8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 49cc485 Update to 0.1.4