$ git clone -n http://git.inferitos.ru/rpms/rubygem-pg /var/lib/mock/inferit-9_1-bootstrap-build-3533-3399/root/chroot_tmpdir/scmroot/rubygem-pg
Cloning into '/var/lib/mock/inferit-9_1-bootstrap-build-3533-3399/root/chroot_tmpdir/scmroot/rubygem-pg'...
$ git fetch origin changed/i9c/rubygem-pg-1.2.3-7.el9:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/rubygem-pg
 * [new tag]         changed/i9c/rubygem-pg-1.2.3-7.el9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9cb03b8 import rubygem-pg-1.2.3-7.el9