$ref in path not correctly handled in case of path parameter

[LasneF]

since 0.8.7 and path now support $ref

but this looks not fully handled in correctly when there is a path parameter

exemple :

File : openapi.yaml contains

/pets/{petId}:
    $ref: ./paths/pet.yaml

File : pet.yaml

parameters:
  - $ref: "../parameters/petId.yaml"

get:
     responses:
           "200":

vacuum mentionned

GET must define parameter petId as expected by path /pets/{petId}

[LasneF]

may be a duplicate of #390

[daveshanley]

Addressed in v0.9.0 it was fixed in libopenapi

https://github.com/pb33f/libopenapi/blob/main/index/spec_index_test.go#L1618