$ git clone -n https://src.fedoraproject.org/rpms/hyphen-da.git /var/lib/mock/f45-build-13893-455/root/chroot_tmpdir/scmroot/hyphen-da
Cloning into '/var/lib/mock/f45-build-13893-455/root/chroot_tmpdir/scmroot/hyphen-da'...
$ git fetch origin 5612d5b69582a5d8a700be8b6e46fe8d3dae504b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hyphen-da
 * [new ref]         5612d5b69582a5d8a700be8b6e46fe8d3dae504b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5612d5b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild