Ability to add a link to the word that is a Glossary entry 

At the moment, when a user tries to add a link to a word that represents a Glossary entry, that page cannot be saved. An improvement could be that the user would be able to add a link to a word that is part of Glossary.

Steps to reproduce:

1. create an entry in the Glossary

2. try adding a linkto an existing word in the Glossary

3. save the page

Expected result: the link has been added to the word-entry and the page has been properly saved 

Actual result : page cannot be saved