First description of some behaviour which could be improved:
In backend edit page “About us”. Change SEF URL and test saved page afterwards (preview, frontpage of shop).
Result: Error 404
This is a static block as well where SEF URL is given. This URL has precedence (sp?) over page settings.
It would be nice to get a warning in case one changes a page URL which is used in another relation as well. Best would be to have chance to synchronize it with one click than in case one wants to do it.