$ git clone -n http://git.inferitos.ru/rpms/mythes-ca /var/lib/mock/inferit-8_8-build-15302-23060/root/chroot_tmpdir/scmroot/mythes-ca
Cloning into '/var/lib/mock/inferit-8_8-build-15302-23060/root/chroot_tmpdir/scmroot/mythes-ca'...
$ git fetch origin changed/i8c/mythes-ca-1.5.0-15.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/mythes-ca
 * [new tag]         changed/i8c/mythes-ca-1.5.0-15.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d4660c edit changelog for import mythes-ca-1.5.0-15.el8