`apm publish` fails to publish new package from !`master` branch with error: `That repo does not exist, isn't an atom package, or you do not have access`

[ryanblock]

Prerequisites

• Put an X between the brackets on this line if you have done all of the following:
  • Reproduced the problem in Safe Mode: https://flight-manual.atom.io/hacking-atom/sections/debugging/#using-safe-mode
  • Followed all applicable steps in the debugging guide: https://flight-manual.atom.io/hacking-atom/sections/debugging/
  • Checked the FAQs on the message board for common solutions: https://discuss.atom.io/c/faq
  • Checked that your issue isn't already filed: https://github.com/issues?utf8=✓&q=is%3Aissue+user%3Aatom
  • Checked that there is not already an Atom package that provides the described functionality: https://atom.io/packages

Description

Publishing a new package with apm fails with the following error if it is published from a branch that is not named master: That repo does not exist, isn't an atom package, or you do not have access

It may be a factor in this bug that the package was scoped to a GitHub organization (in this case @architect). I did not attempt to publish junk packages to isolate that particular factor.

Steps to Reproduce

0. Authored repo, tested everything locally, followed the publishing guide, repo is in main branch (note the branch is in green)

1. Run apm publish patch (in a logged out state)

2. Authorized Atom to my GH account

3. Operation fails (see error below); tried again, same result

4. Confirmed in GitHub my account is properly authorized (it is)

5. Create a master branch from main

6. Run apm publish patch again from master, this time it works (again, note the branch is in green):

7. Merged master branch back into main

8. Run apm publish patch again, now from main, it works:

Expected behavior:

New publishes can be published from any branch, not just master. Given the fact that the default branch in GitHub is no longer master, but is instead main, and folks are rightfully encouraged to use main and not master, this seems like a reasonable expectation.

Actual behavior:

See above.

Reproduces how often:

Every time.

Versions

MacOS Big Sur 11.5.2

apm --version
apm  2.6.2
npm  6.14.13
node 12.14.1 x64
atom 1.58.0
python 2.7.16
git 2.21.1

Additional Information

• The master branch PR (now merged) that allowed the package to be published: architect/atom-package#1
• master branch workaround found here