$ git clone -n http://git.inferitos.ru/rpms/libpq /var/lib/mock/inferit-8_10-updates-build-92264-170825/root/chroot_tmpdir/scmroot/libpq
Cloning into '/var/lib/mock/inferit-8_10-updates-build-92264-170825/root/chroot_tmpdir/scmroot/libpq'...
$ git fetch origin changed/i8c/libpq-13.20-1.el8_10:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/libpq
 * [new tag]         changed/i8c/libpq-13.20-1.el8_10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9493420 import libpq-13.20-1.el8_10