$ git clone -n http://git.inferitos.ru/rpms/fftw /var/lib/mock/inferit-8_8-build-25514-44377/root/chroot_tmpdir/scmroot/fftw
Cloning into '/var/lib/mock/inferit-8_8-build-25514-44377/root/chroot_tmpdir/scmroot/fftw'...
$ git fetch origin changed/i8c/fftw-3.3.5-11.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/fftw
 * [new tag]         changed/i8c/fftw-3.3.5-11.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e796974 edit changelog for import fftw-3.3.5-11.el8