$ git clone -n https://src.fedoraproject.org/rpms/ghc-auto-update.git /var/lib/mock/f45-build-9995-412/root/chroot_tmpdir/scmroot/ghc-auto-update
Cloning into '/var/lib/mock/f45-build-9995-412/root/chroot_tmpdir/scmroot/ghc-auto-update'...
$ git fetch origin 00411d6547898d7e3fbe65544fd6cd9f5743d330:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-auto-update
 * [new ref]         00411d6547898d7e3fbe65544fd6cd9f5743d330 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 00411d6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild