Thank you for reporting this! We do not yet have support for per-organization issue nor pull request templates. I'm going to re-label this as "feature", but I can also see how you can perceive it as a bug.

Thanks for replying so quickly. I am considering trying to do a PR on this, how would you start?

Here is where the pull-request command reads repo templates from disk:

You would need to add a condition that, in case a template isn't found in this repo, fetches the templates from the ORG/.github repo. The precise way of doing that would be up to you to figure out. To my knowledge, there isn't a GitHub API to read repo templates.

I have doubts about this functionality. Fetching per-org repo templates will add an additional overhead for every repo that doesn't have its own templates, slowing down the time since pull-request was run to when a text editor opens for authoring PR title & message. Also it looks like it will add complexity to the code and long-term maintenance overhead, and I'm not sure how useful the feature will be in the first place.

You may take a stab implementing this, but keep in mind all these considerations and that the feature won't necessarily make it into a release considering the trade-offs.