cubicweb-seda #17098404 problem with cardinality of repeatable elements [validation pending]

it seems that currently, RNG validators (jing at least) are not able to validate profiles with several elements of the same name but non single cardinality (e.g. a data-object of card 1..n then another with whatever cardinality).

Until we do more UX research to avoid this by design, we will:

  • allow at least one repeatable element with cardinality != 0, and raise an error otherwise,
  • order repeatable elements so that the one with cardinality != 0 appears last.
done in0.10.7
load left0.000
closed by#4941eab6a289 [profile gen] Ensure same name children are ordered accorded to their cardinality