$ git clone -n https://src.fedoraproject.org/rpms/ghc-binary-shared.git /var/lib/mock/f45-build-10017-412/root/chroot_tmpdir/scmroot/ghc-binary-shared
Cloning into '/var/lib/mock/f45-build-10017-412/root/chroot_tmpdir/scmroot/ghc-binary-shared'...
$ git fetch origin 3c14863f599d349a4ad681524592fed41a95e8a4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-binary-shared
 * [new ref]         3c14863f599d349a4ad681524592fed41a95e8a4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c14863 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild