don't create activity, e.g. for paid-changes, as this is already logged

src/model/user/basic.rs

@@ -469,12 +469,14 @@ impl User {
             )
         })?;
 
-        ActivityBuilder::new(&format!(
-            "{updated_by} hat die Rolle '{role}' dem Benutzer {self} hinzugefügt."
-        ))
-        .relevant_for_user(&self)
-        .save(db)
-        .await;
+        if !role.hide_in_lists {
+            ActivityBuilder::new(&format!(
+                "{updated_by} hat die Rolle '{role}' dem Benutzer {self} hinzugefügt."
+            ))
+            .relevant_for_user(&self)
+            .save(db)
+            .await;
+        }
 
         Ok(())
     }