Change project-wide execution options for Mermaid

[dhicks]

I'm working on a project that includes, in effect, an extensive Mermaid tutorial. I'd like to set all of the Mermaid blocks to echo: true. Either setting echo: true in _quarto.yml doesn't seem to do the trick or I'm confused about where to put it. Non-working example attached.

_quarto.yml.zip

[cscheid]

This should work, it's most likely a plain bug.

[cscheid]

This should be fixed as of 7a9558d.