$ git clone -n http://git.inferitos.ru/rpms/libdwarf /var/lib/mock/inferit-8_8-build-14701-23060/root/chroot_tmpdir/scmroot/libdwarf
Cloning into '/var/lib/mock/inferit-8_8-build-14701-23060/root/chroot_tmpdir/scmroot/libdwarf'...
$ git fetch origin changed/i8c/libdwarf-20180129-4.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/libdwarf
 * [new tag]         changed/i8c/libdwarf-20180129-4.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 46598f8 edit changelog for import libdwarf-20180129-4.el8