$ git clone -n http://git.inferitos.ru/rpms/tang /var/lib/mock/inferit-8_8-bootstrap-build-28690-48407/root/chroot_tmpdir/scmroot/tang
Cloning into '/var/lib/mock/inferit-8_8-bootstrap-build-28690-48407/root/chroot_tmpdir/scmroot/tang'...
$ git fetch origin changed/i8c/tang-7-8.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/tang
 * [new tag]         changed/i8c/tang-7-8.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4e2b17 import tang-7-8.el8