Trigger plan on PR's with same terraform dir after unlock

[thefire]

Hello,

I'm curious if you have considered a feature where Terrateam would trigger an auto plan on any open PR's that target a directory after Terrteam has unlocked that dir following it's apply and merge (or merge and apply)?

The scenario I am thinking of is two PRs that both target the same dir/workspace combination. PR 1 gets applied and merged and we know that an existing plan in PR 2 will be invalidated but that author will have to find that out for themselves by either triggering a plan or apply.

It occurs to me that when Terrateam unlocks a dir/workspace it could check for related PR's and trigger an auto plan in to ensure they no longer have a stale plan. Plus the new comment that would be added would notify the PR authors of the change.

Thoughts?