$ git clone -n https://src.fedoraproject.org/rpms/ghc-data-default.git /var/lib/mock/f45-build-10178-414/root/chroot_tmpdir/scmroot/ghc-data-default
Cloning into '/var/lib/mock/f45-build-10178-414/root/chroot_tmpdir/scmroot/ghc-data-default'...
$ git fetch origin 483a022e761b0af6a43424aecce8e6f45801bc5f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-data-default
 * [new ref]         483a022e761b0af6a43424aecce8e6f45801bc5f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 483a022 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild