$ git clone -n https://src.fedoraproject.org/rpms/ghc-prettyprinter.git /var/lib/mock/f45-build-10638-419/root/chroot_tmpdir/scmroot/ghc-prettyprinter
Cloning into '/var/lib/mock/f45-build-10638-419/root/chroot_tmpdir/scmroot/ghc-prettyprinter'...
$ git fetch origin 4999faf45fff03f2f3794334dc840b1f489511c0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-prettyprinter
 * [new ref]         4999faf45fff03f2f3794334dc840b1f489511c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4999faf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild