$ git clone -n http://git.inferitos.ru/rpms/opencl-headers /var/lib/mock/inferit-8_8-build-27244-46213/root/chroot_tmpdir/scmroot/opencl-headers
Cloning into '/var/lib/mock/inferit-8_8-build-27244-46213/root/chroot_tmpdir/scmroot/opencl-headers'...
$ git fetch origin changed/i8c/opencl-headers-2.2-1.20180306gite986688.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/opencl-headers
 * [new tag]         changed/i8c/opencl-headers-2.2-1.20180306gite986688.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a348f88 edit changelog for import opencl-headers-2.2-1.20180306gite986688.el8