Keep notification's email subject consistent to allow email threads/conversations instead of single emails per change

As a user, I would have all the notifications email for specific ideas or releases in a single conversation/thread.

In Gmail, if I receive multiple emails with the same subject, they get grouped in a conversation/thread. To do this, I believe the best way would be to have set the subject to something like

• [AHA] Changes on I-123 Example Idea Name

So instead of getting

• [AHA] Product Manager Moved on Example Idea Name to Release XYZ
• [AHA] John Doe commented on I-123 Example Idea Name
• [AHA] Multiple people updated  Example Idea Name
• [AHA] John Doe edited comment on I-123 Example Idea Name

I would get 4 emails with the title

• [AHA] Changes on I-123 Example Idea Name

And Gmail would automatically group them in a single conversation/thread.