$ git clone -n https://src.fedoraproject.org/rpms/python-nashpy.git /var/lib/mock/f39-build-1945794-43201/root/chroot_tmpdir/scmroot/python-nashpy
Cloning into '/var/lib/mock/f39-build-1945794-43201/root/chroot_tmpdir/scmroot/python-nashpy'...
$ git fetch origin ae88a506d697830d45ddc9beebd98b6854c56982:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-nashpy
 * [new ref]         ae88a506d697830d45ddc9beebd98b6854c56982 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae88a50 Update to 0.0.40