<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">OK, now I got you. So I think it's actually not that important when they are created but whether and in which order they are registered on different ranks (see attached edited MWE). Yes, that's a relevant concern I must admit, mainly for things working with subcomms.<div class=""><br class=""></div><div class="">Thanks</div><div class=""><br class=""></div><div class="">Vaclav<br class=""><div></div></div></body></html>