$ git clone -n http://git.inferitos.ru/rpms/mock /var/lib/mock/inferit-8_10-extras-build-92970-174989/root/chroot_tmpdir/scmroot/mock
Cloning into '/var/lib/mock/inferit-8_10-extras-build-92970-174989/root/chroot_tmpdir/scmroot/mock'...
$ git fetch origin changed/i8ce/mock-6.1-1.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/mock
 * [new tag]         changed/i8ce/mock-6.1-1.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 04fcedf import mock-6.1-1.el8