
This branch continues the work of #23092 and attempts to rid the codebase of any `nil` contexts when using a `RenderContext`. Anything that renders markdown or does post processing may call `markup.sha1CurrentPatternProcessor()`, and this runs `git.OpenRepository()`, which needs a context. It will panic if the context is `nil`. This branch attempts to _always_ include a context when creating a `RenderContext` to prevent future crashes. Co-authored-by: Kyle D <kdumontnu@gmail.com>