Failed validation when adding nested elements with the same name

[ahx]

I am using the alchemy3-demo as a reference implementation. Not sure if this is a problem of Alchemy or the demo app.

Steps:

• install alchemy3-demo and update alchemy_cms to master
• add a global "footer" page and add a "footer_link" element. Fill the link field and press enter
• click the "Add a link" button – It does not work. An error is shown with a failed validation. This is expected behaviour when looking at the Alchemy::Content model, but i have no idea how the nested elements feature should work with the validation in place that was added in https://github.com/magiclabs/alchemy_cms/commit/d7959405f0d4e6a69a2c13610aad79a2f045a8c9

[ahx]

The line with the validation code has not been touched in years. Looks suspicious 7fe82de017e27cc84031f208cb0cd1a0682b35e4