Multiple comments can be added on quickly clicking Add internal comment button on shared page.

Steps to Reproduce:

1. Create a share on any JSM project

2. Enable the "Add internal comments" option.

3. Navigate to Comments > Add content

4. Quickly click Add internal comments button multiple time

5. Observe multiple comments are added

Expected result

Multiple comments should be added on clicking Add internal comment button.

Actual result

Multiple comments can be added on quickly clicking Add internal comment button on shared page.