$ git clone -n http://git.inferitos.ru/rpms/valgrind /var/lib/mock/inferit-8_8-bootstrap-build-28787-48643/root/chroot_tmpdir/scmroot/valgrind
Cloning into '/var/lib/mock/inferit-8_8-bootstrap-build-28787-48643/root/chroot_tmpdir/scmroot/valgrind'...
$ git fetch origin changed/i8c/valgrind-3.21.0-8.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/valgrind
 * [new tag]         changed/i8c/valgrind-3.21.0-8.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b0c17e2 import valgrind-3.21.0-8.el8