$ git clone -n https://src.fedoraproject.org/rpms/hyphen-mn.git /var/lib/mock/f45-build-13856-455/root/chroot_tmpdir/scmroot/hyphen-mn
Cloning into '/var/lib/mock/f45-build-13856-455/root/chroot_tmpdir/scmroot/hyphen-mn'...
$ git fetch origin 997e70bc2a829aea48051294bfd1e58d94c92d7d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hyphen-mn
 * [new ref]         997e70bc2a829aea48051294bfd1e58d94c92d7d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 997e70b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild