Only one last comment is shown in the PR inspector, others missing

**Describe the bug**
There are plenty of comments shown when I look at the pull request in the browser, but only one when I browse through the extension. In particular it is the last comment that is shown and a reply to it. All the others are not.

**Expected behavior**
All of the comments that were not deleted are found in the extension in the PR inspector view.

> I'm not sure if that's expected behavior, but I expect that what I see in the browser corresponds directly to what I see in the extension and it doesn't.

**Environment and Version (please complete the following information):**
- Atlassian Plugin Version (3.6.3)
- Visual Studio Code Version (1.99.2)
- Is this a local or cloud environment? (Local)
- If Local, OS (linux)

Start in the PR inspector view and trace how pull-request comments are fetched and rendered. Compare the extension's result with the comments visible in the browser, including replies and non-deleted comments; done means the inspector displays all available comments rather than only the latest comment and its reply.

Written by the indexing model from the issue text.