$ git clone -n http://git.inferitos.ru/rpms/rubygem-childprocess.git /var/lib/mock/inferit-9-extras-build-20389-33807/root/chroot_tmpdir/scmroot/rubygem-childprocess
Cloning into '/var/lib/mock/inferit-9-extras-build-20389-33807/root/chroot_tmpdir/scmroot/rubygem-childprocess'...
$ git fetch origin 2b7830c:KOJI_FETCH_HEAD
fatal: couldn't find remote ref 2b7830c
$ git reset --hard 2b7830c
HEAD is now at 2b7830c import rubygem-childprocess-4.1.0-4.el9