$ git clone -n http://git.inferitos.ru/rpms/lttng-ust /var/lib/mock/inferit-8_8-build-15147-23060/root/chroot_tmpdir/scmroot/lttng-ust
Cloning into '/var/lib/mock/inferit-8_8-build-15147-23060/root/chroot_tmpdir/scmroot/lttng-ust'...
$ git fetch origin changed/i8c/lttng-ust-2.8.1-11.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/lttng-ust
 * [new tag]         changed/i8c/lttng-ust-2.8.1-11.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c3e5736 edit changelog for import lttng-ust-2.8.1-11.el8