Nested numbered lists broken in Gists

[wolf99]

Nested numbered lists seem to not be recognized in gists.

Check out a minimal example here: https://gist.github.com/wolf99/fa4048c083d97340b5dfe31573579806

It works on GitHub main and in issues, as can be seen here:

1. This is a list item
   1.1. This is a correctly nested numbered list item
2. This is a list item

[github-actions]

Stale issue message

[wolf99]

Not stale issue message.
This is still a problem.

[github-actions]

Stale issue message

[wolf99]

Non-stale issue message.
This is still a problem.

[github-actions]

Stale issue message

[wolf99]

Non-stale issue message.
This is still a problem.

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[wolf99]

Non-stale issue message.
This is still a problem.