Custom products should be disabled by default
Before: Custom repositories are enabled by default. Host has 6 custom repositories. 4 are overridden to disabled, leaving 2 repositories enabled.
Migration: The 2 repositories (that were previously enabled by default) have content overrides automatically added ("override to enabled"). The 4 repositories that were previously disabled via content overrides are not touched.
All products in all orgs are updated via calls to Candlepin.
For newly created products, the "true" here flips to "false": https://github.com/Katello/katello/blob/master/app/lib/actions/candlepin/product/content_add.rb#L13
After: Of the 6 custom repositories, 2 are overridden to enabled, and 4 are overridden to disabled. The same 2 repositories are enabled as before, while the same 4 repositories as before are disabled. Going forward, new custom repositories will be disabled by default.