Regression? Relation warnings not accumulated

[malenki]

The Validator doesn't accumulated identical warnings for different relations but the same error as it does with all other errors.
Now the categories of errors are named
"Role for $waynumber should be outer ($numberofways))"
and are produced by the dozen.
It would be better to have
"Role should be outer"
and have $waynumber and ($numberofways)) on the single warnings.

This behaviour got introduced between r6565 and r6572.
Before, the warnings got collected as
"Problems with Roles"
+- "Role outer missing"
(Translation from German warnings)

[malenki]

a lot of single relation role warnings make the validator look confusing