$ git clone -n http://git.inferitos.ru/rpms/perl-JSON /var/lib/mock/inferit-8_8-build-26044-44582/root/chroot_tmpdir/scmroot/perl-JSON
Cloning into '/var/lib/mock/inferit-8_8-build-26044-44582/root/chroot_tmpdir/scmroot/perl-JSON'...
$ git fetch origin changed/i8c/perl-JSON-2.97.001-2.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/perl-JSON
 * [new tag]         changed/i8c/perl-JSON-2.97.001-2.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f275f35 edit changelog for import perl-JSON-2.97.001-2.el8