Story points and sub-task points being counted 'twice'

[Tony Kiernan]

We want to use sub-tasks in our board.  However, if we size a sub-task it does not count towards the sprint total.  We have used the solution in here

https://community.atlassian.com/t5/Automation-articles/New-automation-smart-values-in-Jira-Cloud/ba-p/1402775#

Adding {{issues.subtasks.Story Points.sum}} to our story

Every thing looks great until you add the story to a sprint.  The sprint total then seems to add both the totalised story points and the individual sub-task points. 

(I say 'seems to'  it's adding twice the value I'd expect - just the story total - this might not be adding both story and sub-tasks.  I don't know)

Any advice on how to get the correct total?

[Nic Brough -Adaptavist-]

Welcome to the Atlassian Community!

Yes, this is correct behaviour, even though it looks broken at first.

The problem is a misunderstanding about what a sub-task is.  They are a part of their parent issue (story), not a separate item, and hence not a sprint item.  When you're doing a sprint, all that matters is the completion (or not) of sprint items.  Estimates on sub-tasks don't count as anything other than as part of their parent.

Now, there's nothing wrong with estimating sub-tasks, but if you do it, you need a proper summing strategy that reflects that their estimate is part of the story's estimate.

Jira has kept it simple, and not implemented any summing system other than "don't put estimates on sub-tasks".

[Tony Kiernan]

A little more detail.  Above it the totals above the sprint in the backlog.  61 points. Not as expected. Which the burndown shows: