$ git clone -n http://git.inferitos.ru/rpms/HdrHistogram_c /var/lib/mock/inferit-8_8-build-12622-22642/root/chroot_tmpdir/scmroot/HdrHistogram_c
Cloning into '/var/lib/mock/inferit-8_8-build-12622-22642/root/chroot_tmpdir/scmroot/HdrHistogram_c'...
$ git fetch origin changed/i8c/HdrHistogram_c-0.9.13-2.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/HdrHistogram_c
 * [new tag]         changed/i8c/HdrHistogram_c-0.9.13-2.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b8040a6 edit changelog for import HdrHistogram_c-0.9.13-2.el8