Rikkert

Regression is related to the change made in commit 29b9597164164c46124d135faca9ecc43c7c92fe. Cache for relationships with a `meta` attribute are skipped due to [this condition](https://github.com/olosegres/jsona/blob/24d80cbd58f15c39652c3904a7a52ce99d3e1218/src/cache.ts#L40), which breaks circular references. The issue can...