GH-Pages - Pushed to wrong domain

[27136773]

Copy of support ticket 1473099 tracked by @ronny1982

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Description

Hi,
I noticed that the domain in the CNAME of one repository is automatically enforced as default domain for any other repository, therefore there is no way to just host any other repository under username.github.io anymore.
Is this intentional or a bug?

If both repositories are pushed to the same domain, there might occur collisions between folders/files

Repo A - CMANE: foo.bar

Repo B (same organisation) - no CNAME

Reproduction Steps

1. Create an organization
2. Create a first repository (within organization)
3. Configure JEKYLL deployment and a custom CNAME set e.g. in GH Pages settings
4. Create a second repository (within organization)
5. Check GH Pages settings which now shows the domain from the first repository's CNAME instead of oragnization.github.io as default domain

Fault Type

Permanent - Occurring repeatably

Blocking?

Non-Blocking

Last working date

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