Fixed permissions

src/PermissionManager.h

@@ -832,6 +832,21 @@ namespace ts {
                     return false;
                 }
 
+                /**
+                 * Set the permission value to zero if the permission hasn't been set.
+                 * This could be used to check if a client could do an action on another client
+                 * but the client requires at least some power.
+                 * @return
+                 */
+                constexpr auto& zero_if_unset() {
+                    if(!this->has_value) {
+                        this->has_value = true;
+                        this->value = 0;
+                    }
+
+                    return *this;
+                }
+
                 inline bool operator==(const PermissionFlaggedValue& other) const { return other.value == this->value && other.has_value == this->has_value; }
                 inline bool operator!=(const PermissionFlaggedValue& other) const { return !(*this == other); }
             };