For a given issue, JIRA Cloud API does not have a complete list of Github commits, It only displays the commit count and date of last commit.
customfield_11100: "{repository={count=9, dataType=repository}, json={"cachedValue":{"errors":[],"summary":{"repository":{"overall":{"count":9,"lastUpdated":"2017-09-19T15:44:04.000-0400"},"byInstanceType":{"githube":{"count":9,"name":"GitHub Enterprise"}}}}},"isStale":true}}But in the Browser UI, additional details are displayed with hyperlinks to the commit details.

How can we gain access to this commit information via the JIRA API?
Note: The JIRA Issue API JSON does not have any other Git information (e.g. URL, Organization, or Project). So there is no way to dynamically construct an API Call to Github. For example, searching commits with JIRA Issue ID.