What happened to my code comments when I merged a pull request?

[Douglas Vojir]

The code comments made during a pull request can often be useful to refer to later on. However, it seems that they're gone once the merge happens (and the from branch is deleted). I became accustomed to seeing these even on closed PRs on github. Am I missing something, or do they go away? If so, I suppose this would be a good candidate for a feature request.

[aMarcus]

If you open the PR, then click on the 'Activity' tab, you can see all the comments that no longer apply. Comments on code that has changed since the Pull Request has begun are no longer shown, as they are no longer relevant to the section of code that has changed. However, all comments are always shown, along with the diff they related to in the Activity section. Additionally, the header of each file that has hidding comments shows a comment bubble which is clickable to show the hidden comments.

[dresh]

is there a way to see the PR comments for an already merged PR?

[richa bansal]

yes,  you can see.. 
Go to branch-->click on merged--> open a PR