$ git clone -n http://git.inferitos.ru/rpms/ghc-yaml.git /var/lib/mock/inferit-9-epel-build-18593-25995/root/chroot_tmpdir/scmroot/ghc-yaml
Cloning into '/var/lib/mock/inferit-9-epel-build-18593-25995/root/chroot_tmpdir/scmroot/ghc-yaml'...
$ git fetch origin a86802a:KOJI_FETCH_HEAD
fatal: couldn't find remote ref a86802a
$ git reset --hard a86802a
HEAD is now at a86802a import ghc-yaml-0.11.8.0-13.el9