Using @Secuirty Decorator for controller class with more than one method fails to generate swagger docs

[r0610205]

When using controller.secuirty vs method.security the value should cloned rather than copied. If @Secuirty decorator defined as @Security('*', 'basic') then produced value will be ['*'] - Array, which in case of multiple methods will reference the same internal object.

Without cloning the value, underlying swagger2openapi library fails with S2OError: YAML anchor or merge key.

typescript-rest-swagger/src/swagger/generator.ts

Line 139 in a0dd006

method.security = method.security || controller.security;

Proposed fix:

 method.security = method.security || (controller.security ? JSON.parse(JSON.stringify(controller.security)) : controller.security);