closes#12156
- When adding new member through `POST /members` API or importing members with CSV importer `POST /members/upload` API created_at and subscribed were ignored
- Similar problem but only with `subscribed` field was present in `PUT /members/:id` API
- The regression was introduced with a bump of @tryghost/members-api to 0.26.0, specifically this change in upstream - a28bcc5b2a (diff-3daeef67d07a2a0f94c89a86cafcede9R44)
- Bumped @tryghost/members-api package to 0.28.2 fixing the underlying issue - 7b5f2e3cb7
- move all test files from core/test to test/
- updated all imports and other references
- all code inside of core/ is then application code
- tests are correctly at the root level
- consistent with other repos/projects
Co-authored-by: Kevin Ansfield <kevin@lookingsideways.co.uk>
