Creating a new metadata schema with a namespace containing a period throws an error

[bram-atmire]

Describe the bug It is impossible to create a new metadata schema from the UI when the namespace fields contains a period. Periods are very common in the namespace field as typical values used there, are uris.

To Reproduce Steps to reproduce the behavior:

1. Go to /admin/registries/metadata
2. Try to add a new metadata schema with a namespace that contains a period, for example the value "datacite.org"

Expected behavior Periods should be accepted in namespace values for metadata schemas.

Related work We've introduced protection against creating metadata fields that contain a period in the name in here: https://github.com/DSpace/dspace-angular/pull/2177

It seems like this "protection" is inadvertently also applied on the namespace field in the creation dialog for a new namespace.

[tdonohue]

Moving this to dspace-angular as it sounds like a frontend bug accidentally caused by https://github.com/DSpace/dspace-angular/pull/2177 ?

Once it's moved, I'll add this to the 7.6.x board in search of a volunteer.

[alexandrevryghem]

Atmire would like to claim this issue

[tdonohue]

Thanks @alexandrevryghem ! Assigning this to you for you/Atmire to work on.