It was hard to figure out what your question was. I think you just need to copy some fields from the parent to the child issue. This is not done automatically intentionaly, so you need to do it yourself in the workflow during the post-function processing. There are various ways to do it. I suggest you look into the marketplace.
JIRA Misc Worklfow Extensions and Script Runner are some examples that should work for you.
A picture is worth a thousand words, especially when you're trying to find relationships and understand your data. Here, Dashboards play a vital role in gaining insights from a variety of dat...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events