What to do when an <output> link fails

With respect to: https://lists.w3.org/Archives/Public/public-xformsusers/2025Aug/0005

Steven: What to do when failing to dereference a URI
… I believe it should be nonfatal

Erik: I agree, though submit-error is odd

Steven: It's what we use for <instance>
… I'm happy to invent a new error , eg xforms-link-warning

Erik: It is convenient that submit-error already exists, it's just not the right name...

Steven: Let's have time to think it over, and discuss again next time.