Problem Statement:

When configuring filters on the Activities entity, the system automatically re-adds the filter "Activity Type = Untracked Email" after it has been manually removed and the changes are applied. This behavior occurs consistently and prevents administrators from creating and maintaining custom Activity Type filters as intended.

Business Impact:

• Users cannot fully customize Activity views.
• Unwanted filtering criteria are automatically restored.
• Reporting and activity analysis may not reflect the desired dataset.
• Increased administrative effort due to repeated filter corrections.

Steps to Reproduce:

1. Open a view based on the Activities entity.
2. Add a filter such as Activity Type = Status Update.
3. Delete the existing filter Activity Type = Untracked Email.
4. Click Apply and save the changes.
5. Reopen the filter configuration.

Actual Result:

The "Activity Type = Untracked Email" filter automatically reappears after clicking Apply, even when it was removed. The same behavior occurs in copied versions of the view.

Expected Result:

Once the "Activity Type = Untracked Email" filter is removed and the changes are applied, it should remain removed unless the user explicitly adds it back.