Studio should not accept vocabs which have conflicting or similar names

In Studio if I create two Vocabularies asset_type and asset-type and use PostgreSQL the table creation for asset_type will fail:

2017-05-05 21:52:37,966 ERROR [localhost-startStop-1] [org.nuxeo.runtime.model.impl.RegistrationInfoImpl] Component service:org.nuxeo.ecm.directory.DirectoryServiceImpl notification
 of application started failed: Table 'Table(studio_vocabulary_asset_type)' creation failed: ERROR: table "studio_vocabulary_asset_type" does not exist

The table for asset-type gets created with no error:

 public | studio_vocabulary_asset-type             | table    | nuxeo

I think either Studio should disallow creation of vocabs which have the same [a-zA-Z] pattern but different punctuation. Or VCS should do something to change the punctuation.

Please do not lose sight of the fact that this is reproducible on Postgres - it is not a problem on h2.