TYPO3 Core

This only happens for new exception codes on branches not included in a
release (yet). Exception codes contained in in a release should work.

We could consider to scan branches also for the exception code extraction
and page creation so it will be there at least with a minor delay in the
corresponding repository.

In the past a application got that request creating a page on the fly.

So, literally there is no need to replace that url right now, but could
considered in the long term. Should be coordinated anyway.