Fix sign flags on logout

Signed-off-by: Ivan Kanakarakis <[email protected]>

Author: c00kiemon5ter

src/saml2/client.py

@@ -281,8 +281,10 @@ def do_logout(
                     session_indexes = None
 
                 sign = sign if sign is not None else self.logout_requests_signed
-                sign_post = False if binding == BINDING_HTTP_REDIRECT else sign
-                sign_redirect = False if binding == BINDING_HTTP_POST and sign else sign
+                sign_post = sign and (
+                    binding == BINDING_HTTP_POST or binding == BINDING_SOAP
+                )
+                sign_redirect = sign and binding == BINDING_HTTP_REDIRECT
 
                 req_id, request = self.create_logout_request(
                     destination,