$ git clone -n http://git.inferitos.ru/rpms/efi-rpm-macros /var/lib/mock/inferit-10_0-bootstrap-build-67949-150409/root/chroot_tmpdir/scmroot/efi-rpm-macros
Cloning into '/var/lib/mock/inferit-10_0-bootstrap-build-67949-150409/root/chroot_tmpdir/scmroot/efi-rpm-macros'...
$ git fetch origin changed/i10-beta/efi-rpm-macros-6-3.el10.inferit:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/efi-rpm-macros
 * [new tag]         changed/i10-beta/efi-rpm-macros-6-3.el10.inferit -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec7dc5f Add x86_64_v2 to arch list