$ git clone -n http://git.inferitos.ru/rpms/valgrind /var/lib/mock/inferit-8_8-build-17613-23083/root/chroot_tmpdir/scmroot/valgrind
Cloning into '/var/lib/mock/inferit-8_8-build-17613-23083/root/chroot_tmpdir/scmroot/valgrind'...
$ git fetch origin changed/i8c/valgrind-3.19.0-1.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/valgrind
 * [new tag]         changed/i8c/valgrind-3.19.0-1.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c799f7b edit changelog for import valgrind-3.19.0-1.el8