[xmlsec] Signaute that does not sign a node

[Timothy Legge]

Hi

I recently had a file that had three signatures but one of the
References in the file did not point to anything in the XML file.

https://pastebin.com/raw/8TWV0AZW

What does one do with that?  In my case I used the reference to look
for a matching node with the ID set to the value of the reference.
Since it was not in the file, I skipped processing that signature.

I know it's a little off topic for this list but I imagine you have
seen something similar before.

Tim