$ git clone -n http://git.inferitos.ru/rpms/rt-setup /var/lib/mock/inferit-8_10-bootstrap-build-51247-95696/root/chroot_tmpdir/scmroot/rt-setup
Cloning into '/var/lib/mock/inferit-8_10-bootstrap-build-51247-95696/root/chroot_tmpdir/scmroot/rt-setup'...
$ git fetch origin changed/i8c/rt-setup-2.1-5.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/rt-setup
 * [new tag]         changed/i8c/rt-setup-2.1-5.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e42b7af import rt-setup-2.1-5.el8