Manually trigger build from old tag / commit

Sorry if this is in the wrong spot, I’m not really sure where else to ask this question.

Is there a way to retroactively build from an old tag or commit id? I’m able to successfully build from new tags but not old. Is something like this even possible? I’ve seen people talk about using the API for similar things. Has any ever ran into this need / issue? Thanks!

It’s possible to manually trigger a build via API but only for valid remote refs (specifically, for what can be passed to git clone --branch).

If the commit you are interested in doesn’t qualify, you can always get around that by creating a branch or a tag at it (then a build would be created automatically since that’s a new change).