Using `github` while disabling `edDraftURI`

Description of problem

https://respec.org/docs/#edDraftURI

says:

Note: it is strongly recommended that you don't publish Editor's drafts, and instead auto-publish your specification using the W3C's Echidna workflow.

Yet, https://respec.org/docs/#github says :

This automatically generates: .[..] edDraftURI

Those 2 statements seem to contradict each other.

URL to affected spec or repo:

https://github.com/w3c/pointerevents/blob/level3/index.html

What happened (e.g., it crashed)?:

edDraftURI: '',
github: "w3c/pointerevents",

Unless edDraftURI is present, respec generates one by default (due to our use of github). Yet, we don't publish an ED for that level, even if we have a GitHub repo.

Expected behavior (e.g., it shouldn't crash):

Ability to use github for GitHub feedback, while disabling the presence edDraftURI.

As a side, while

edDraftURI: ''

does the trick for now, you can't pass an empty string as a URL parameter <url>?edDraftURI= (eg to use with w3c/spec-prod/W3C_BUILD_OVERRIDE).

Start by reading the edDraftURI and github configuration documentation, then reproduce the issue with the pointerevents configuration and with an edDraftURI URL parameter. Done means GitHub feedback remains available while edDraftURI can be disabled, including through an empty URL parameter.