$ git clone -n https://src.fedoraproject.org/rpms/ghc-parser-combinators.git /var/lib/mock/f45-build-10599-419/root/chroot_tmpdir/scmroot/ghc-parser-combinators
Cloning into '/var/lib/mock/f45-build-10599-419/root/chroot_tmpdir/scmroot/ghc-parser-combinators'...
$ git fetch origin 3a751b96c2b8bda6aaa03051c084bdfcc62a3ec1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-parser-combinators
 * [new ref]         3a751b96c2b8bda6aaa03051c084bdfcc62a3ec1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a751b9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild