How to populate relation field in repeatable component?

Questions and Answers Strapi Backend
2

Ok I figured it out:

strapi.entityService.findOne(
    "api::example.example", 
    id, 
    { populate: { component: { populate: { relation: true } } } }
);

I didn’t realize I could access the populate field again for the component. Before I found the answer, I tried:
{ populate: { component: { relation: true } } }
which didn’t work.