Pull Requests for Bitbucket Server ignore default reviewers

[mkaring]

Currently the implementation of the EnterprisePullRequestClient does not add the default reviewers that are setup in the repository.

The API for fetching the default reviewers is documented here: https://docs.atlassian.com/bitbucket-server/rest/5.1.1/bitbucket-default-reviewers-rest.html

Unlike the cloud default reviewers the API seems to require the source and the target reference ID as well as the source and target repository ID to get the default reviewers. This lines up with the configuration possible in bitbucket server, as the default reviewers are setup on a branch level.

[ryan-kelly-tylertech]

I would really love to see this enhancement made. I am having the same issue.