Before we call evaluateDocumentLinks, remove entries for the modified docs

[ubik2]

Remove the schemaTracker entries for the modified docs, so we don't just skip evaluating them.

---

Summary by cubic

Clear cached schemaTracker entries for modified documents before evaluateDocumentLinks, so they’re re-evaluated instead of skipped. Fixes stale link results when docs change.

^{Written for commit bb7b39e. Summary will update automatically on new commits.}

[cubic-dev-ai]

No issues found across 1 file

[ubik2]

I think this is more complicated than I initially thought.
We also need to make sure that the entries we added to schemaTracker get added to newFacts, and we need to add to newFacts or schemaTracker even when the fact doesn't exist (otherwise, we'll subscribe when the fact doesn't exist, and stop watching because it doesn't exist, but then when another client creates that fact, we won't see it).