Feature request: Get aggregate timespent from linked issues

[GYolshin]

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Self hosted (datacenter)

Version of Jira Assistant

v2.49

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Chrome

Feature Suggestion

I use custom report to track aggregated spent time in my issues. Historically team mates use linked tasks to log their works, means that my report is not actual for such issues. In custom report in expressions I need to calculate aggregatetimespent field from issue itself and for linked as well. I tried to ask question (https://github.com/shridhar-tl/jira-assistant/discussions/310), but it has no answer yet. So I decided to ask for a new feature which implies next:

1. Add new util function that returns array of linked issues available in expression. e.x. Utils.linkedIssues()

Using that function I'm planning to calculate sum of aggregatetimespent from linked issues with reduce().

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