Issue Summary

When accessing “Agile board” option from “Filters” > Done issues > Sub task on a closed sprint under a next-gen project, getting "Error type: 500 - Internal server error"

When accessing Done Task or Story from the same closed sprint - no issue.

Issue seem specific to subtasks under next-gen projects.
No issues for subtask under Classic projects

Steps to Reproduce

to replicate:

1. On a project create a story, task and sub task as an example
2. Create a sprint
3. Mark these issues as Done
4. Complete sprint
5. Go to Filters > Advanced issue search > Filter by your project and Done issues
6. Go to the far side of the screen > “…” > select “Agile board” board option

Expected Results

You will be routed to the related Board or to the related sprint report

Actual Results

You get the following error:

Something went wrong
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Error type: 500 - Internal server error
Log reference: ca76bca4-6c15-4f91-ae51-c52f209a6b3d

Workaround

You can go to the related board through the parent issue