$ git clone -n https://src.fedoraproject.org/rpms/plasma-phonebook.git /var/lib/mock/f45-build-28665-632/root/chroot_tmpdir/scmroot/plasma-phonebook
Cloning into '/var/lib/mock/f45-build-28665-632/root/chroot_tmpdir/scmroot/plasma-phonebook'...
$ git fetch origin 347d109b94305d65a58de997cdf2e5cd29bb72a8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-phonebook
 * [new ref]         347d109b94305d65a58de997cdf2e5cd29bb72a8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 347d109 26.08.1