$ git clone -n https://src.fedoraproject.org/rpms/ghc-chunked-data.git /var/lib/mock/f45-build-10097-413/root/chroot_tmpdir/scmroot/ghc-chunked-data
Cloning into '/var/lib/mock/f45-build-10097-413/root/chroot_tmpdir/scmroot/ghc-chunked-data'...
$ git fetch origin 04311fba572cf0fea99603b024710491fcebeae0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-chunked-data
 * [new ref]         04311fba572cf0fea99603b024710491fcebeae0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 04311fb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild