$ git clone -n https://src.fedoraproject.org/rpms/python-ratinabox.git /var/lib/mock/f42-build-side-1-3588149-46943/root/chroot_tmpdir/scmroot/python-ratinabox
Cloning into '/var/lib/mock/f42-build-side-1-3588149-46943/root/chroot_tmpdir/scmroot/python-ratinabox'...
$ git fetch origin 00f0a024a40d400b74222d18ab94f13b6a41ea42:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-ratinabox
 * [new ref]         00f0a024a40d400b74222d18ab94f13b6a41ea42 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 00f0a02 Update to 1.15.3 upstream release