For a policy that is similar to the default:
From: Enable All Patterns
To: Enable All Patterns
Any Subject, Body, and/or Attachment pattern
If you edit the Glossary entry and clear all the Found in locations where the pattern was to be applied, you are left with the default policy pattern (From: Enable All Patterns, To: Enable All Patterns). Since you cannot have two identical policies, the system deletes the edited policy and displays the following message in red:
The policy being edited was removed because it duplicated the default policy.