Enable "Label" filter for sub-task issue types in next-gen boards

Problem Definition

Currently, next-gen boards can't filter sub-task issue types based on the Label. For Standard Issue Types, there is a filter for Label but this feature is currently missing for sub-tasks. Due to this missing feature, we are forced to add the same label to the parent issue of that child issue so that the search/filter function starts appearing.

Suggested Solution

It would be great if next-gen boards would allow you to filter sub-tasks based on Label, just like for other issue types.

Why this is important

Due to this missing feature, on a nextgen board its impossible to filter sub-tasks based on Label

Workaround

Update the parent issue with the same label as the sub-task