Are you aware of any exceptions in civil law which allows to challenge res judicata?
From the en.wikipedia.org
Res judicata applies only to holdings that were necessary to the decision.
From the en.wikipedia.org
Because she couldn't appeal, though, it wouldn't be res judicata.
From the en.wikipedia.org
The doctrine of res judicata applies to an entire case.
From the en.wikipedia.org
Related doctrines include res judicata and, in the criminal context, a plea in bar of double jeopardy.
From the en.wikipedia.org
There is no res judicata or collateral estoppel in science.
From the en.wikipedia.org
When the lawsuit is finally resolved, or the allotted time to appeal has expired, the matter is res judicata.
From the en.wikipedia.org
When the lawsuit has finally been resolved, or the allotted time to file an appeal has expired, the matter is res judicata.
From the en.wikipedia.org
With the exception of annulment cases, if the first instance and second instance tribunals agree on the result of the case, then the case becomes res judicata and there is no further appeal.