Branching a project doesn't duplicate the project glossaries

[pedro-mendonca]

Description

When a user branches a project, it duplicates all originals, translation sets and translations, but the project glossary and matching entries are left behind.

Step-by-step reproduction instructions

1. Create a project
2. Create a translation set
3. Create a project glossary
4. Branch the project
5. Open the cloned set in the cloned project and see that there is no glossary project
6. The same applies for sub-projects

Expected behavior

The Project Glossary and entries should be also copied to the new project

Actual behavior

No project glossaries or entries are duplicaded on branching/duplicating a project.

[markoheijnen]

When I introduce this, it was on my mind to make sure it was integrated correctly so great to see this. I was wondering if additional unit tests are needed for this than as well?