$ git clone -n https://src.fedoraproject.org/rpms/python-tensile.git /var/lib/mock/f40-build-1524110-23919/root/chroot_tmpdir/scmroot/python-tensile
Cloning into '/var/lib/mock/f40-build-1524110-23919/root/chroot_tmpdir/scmroot/python-tensile'...
$ git fetch origin 305ddf41ffac4793458c0d53138d8d4eb681e4af:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-tensile
 * [new ref]         305ddf41ffac4793458c0d53138d8d4eb681e4af -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 305ddf4 Rebuild for f40