[basex-talk] Preserving whitespace for XQuery Updates

I am doing some transformations of datasets, then submitting pull requests to upstream sources on GitHub. For instance, today I am inserting some attributes, but I may be restructuring in various ways or enhancing data in various ways.

To make upstreams happy, I need to be disciplined about not changing whitespace.

What do I have to do? Is it sufficient to preserve whitespace when importing, do an XQuery update, and export, or can that change whitespace beyond what the update operations explicitly say?

Thanks!

Jonathan