Submit multiple versions of an addon (while PR for a given version is still open)

[thomas-ernest]

Problem

I plugged Kodi addon submitter in my addon recetnly : https://github.com/thomas-ernest/plugin.video.arteplussept/blob/master/.github/workflows/release-addon.yml
I worked on few deliveries I wanted to be independnat with independant release versions, so that end-users can fallback in case of issue.

I first tag a commit with version 1.2.0. It submitted a pull-request to kodi plugin repo. This PR wasn't merged yet, while I delivered a new feature and tag another commit with version 1.3.1. It did NOT open a new pull-request. It updated the one with version 1.2.0 and put the content of 1.3.1 in it, without updating the title. My PR was inconsistent unfortunately.
Logs : Action execution with title "Bump version to 1.3.1" in https://github.com/thomas-ernest/plugin.video.arteplussept/actions?page=2

Candidate solutions

The goal of this issue is to support this usecase. Multiple optoins are possible :

• Reject the new submittion and make CI fails.
• Open a new pull-request with an independant version: Multiple PR open in parallel. (preferred)
• Update the existing pull-request with the latest info an dallow to deliver only the last version of an addon.