Name resolution does not match language guide

[doctorstal]

Language guide defines name resolution as follows:

Packages and Name Resolution
Type name resolution in the protocol buffer language works like C++: first the innermost scope is searched, then the next-innermost, and so on, with each package considered to be “inner” to its parent package. A leading ‘.’ (for example, .foo.bar.Baz) means to start from the outermost scope instead.

In other words models.CompanyResponse should be resolved same as prototes.models.CompanyResponse when called within a scope of prototest package.

Here is a minimal example:
https://github.com/doctorstal/nvim-protols-test/tree/main/prototest

CompanyService and CompanyServiceRelative should be the same, and they are compiled the same by protoc.

However, when I'm using protols and try Go to Definition or References - only CompanyService is working as expected