CacheMarkdownField.banzai_render_context forces project/group evaluation, even if it's never used
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See:
https://gitlab.com/gitlab-org/gitlab/-/blob/61cf6a57c73cc514e7f2b172f2baac036ac698ff/app/models/concerns/cache_markdown_field.rb#L35-38
Evaluating these attributes can cause a few database trips — if the Markdown field is cached, depending on post-processing requirements, we may never actually refer to them.
Ideally, Banzai render context fields would be evaluated lazily.
issue