DB graph: LaTeX-only block reference renders as empty [[ ]]

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What Happened?

A reference to a block whose entire content is display LaTeX is not visible in a DB graph. The source block renders correctly, but the reference displays only an empty [[ ]] chip.

Reproduce the Bug

1. Create a local DB graph.
2. Add a block containing only display LaTeX, for example:

   $$ x^2 + y^2 = z^2 $$
   

3. Create a reference to that block using the current DB-graph [[…]] reference picker.
4. Observe the result.

Expected Behavior

The referenced block should show and render the LaTeX, the same way the source block does.

Screenshots

No attachment. Visually, the source formula renders while its referenced block appears only as an empty [[ ]] chip.

Files

No files required. This is reproducible in a new, empty local DB graph.

Browser, Desktop or Mobile Platform Information

macOS 26.6.2; Logseq Desktop 2.0.1.

Additional Context

Related closed report: #687.

That issue was closed as stale with a request to reopen if reproducible on a current 2.0/nightly build. I can reproduce it on 2.0.1, but do not have permission to reopen the original issue.

Are you willing to submit a PR? If you know how to fix the bug.

• I'm willing to submit a PR (Thank you!)

No source files or tests are named. Reproduce the issue in a new local DB graph using a block containing only $$ x^2 + y^2 = z^2 $$, then trace the DB-graph reference rendering path and compare it with the source-block renderer. Done means the referenced block displays and renders the LaTeX instead of showing an empty [[ ]] chip.