$ git clone -n https://src.fedoraproject.org/rpms/ghc-tabular.git /var/lib/mock/f45-build-10818-424/root/chroot_tmpdir/scmroot/ghc-tabular
Cloning into '/var/lib/mock/f45-build-10818-424/root/chroot_tmpdir/scmroot/ghc-tabular'...
$ git fetch origin 64f0920b3cdf9b5865b8f673134808df3bf245dc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-tabular
 * [new ref]         64f0920b3cdf9b5865b8f673134808df3bf245dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64f0920 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild