By creating the activity "Glossary" when the option "Main Glossary" is selected, only teachers should be allowed to insert terms and definitions. However, this option is ignored, allowing the students to insert and modify the terms added to the glossary.

Follow these steps to replicate the bug:
1 - Create a "Glossary".
2 - Select the "Main Glossary" option.
3 - Log In as a student
4 - Insert a new term in the glossary.

Bug: The created glossary allows students to modify the terms added to the glossary.