$ git clone -n https://src.fedoraproject.org/rpms/ghc-attoparsec-binary.git /var/lib/mock/f45-build-9989-412/root/chroot_tmpdir/scmroot/ghc-attoparsec-binary
Cloning into '/var/lib/mock/f45-build-9989-412/root/chroot_tmpdir/scmroot/ghc-attoparsec-binary'...
$ git fetch origin 0647f9d1d93114f57ca378ef4665a954fc09470a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-attoparsec-binary
 * [new ref]         0647f9d1d93114f57ca378ef4665a954fc09470a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0647f9d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild