IDP v3 doesn't like entityID's which start with a number?

[Peter Schober]

* <val at gluu.org> [2016-10-13 17:20]:
> We are in the process of upgrading to v3 from v2, and I just would
> like to confirm if v3 doesn't like entityID's which start with a
> number? In v2 currently this works.

I don't think it can be a legal value for an entityID then, but
differing behaviour here is probably worthy of an issue report in the
bug tracker.
-peter