Markdown tasks lists don't work if description starts with parentheses

- [ ] item a
- [ ] item b
- [ ] (this was done elsewhere) item c
- [ ] item d

Renders as:

• item a
• item b
• (this was done elsewhere) item c
• item d

This is because:

[a link] (or is it?)

Renders as a link in GitLab and GitHub, but not in the original Markdown or in CommonMark. Maybe this is fine, but I found it pretty confusing.