PullRequestActivity representing when the pull request was merged.
Note that merging pull requests is delegated to the SCM implementation, which might support multiple strategies for
merging the changes into the target branch. As such the type of the merge
commit should not
Also note that the merge
commit can be
null if the pull request was merged remotely
and pushed rather than being merged via the UI or REST.
|From interface com.atlassian.bitbucket.activity.Activity|
|From interface com.atlassian.bitbucket.pull.PullRequestActivity|
nullif the pull request was merged remotely