Closed
Description
It's this line here. Test case:
https://github.com/spring-projects/spring-boot-issues/tree/master/gh-9801.
The original problem we had in Spring Cloud Config was probably a poor design (we didn't need infinite depth in that case), but if you needed to configure a tree of arbitrary depth, this "feature" would prevent you from doing so (and give you a big head scratcher about why it was failing).