$ git clone -n https://src.fedoraproject.org/rpms/ghc-hackage-security.git /var/lib/mock/f45-build-10351-415/root/chroot_tmpdir/scmroot/ghc-hackage-security
Cloning into '/var/lib/mock/f45-build-10351-415/root/chroot_tmpdir/scmroot/ghc-hackage-security'...
$ git fetch origin b9c382ba0c2b91c96ed35e473961d3019b248a06:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-hackage-security
 * [new ref]         b9c382ba0c2b91c96ed35e473961d3019b248a06 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9c382b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild