Open the JIRA issue that to want to be cloned.
Select More > Clone.
JIRA Clone Issue
Also can edit the Summary of clone issue, if required.
In case, the issue contains links to another issue (s): Select > In new clone issue as if or not to include the links.
In case, the issue contains sub-tasks: Select > In new clone issue as if or not to create the sub-tasks.
In case, the issue contains attachments: Select > In new clone issue as if or not to include the attachments.
Click on Create button.
