Reported in #1710850: Deploy RestWS for D7 project issue JSON while testing for #2127965: Fix for the new json structure on d.o D7 I ran into:

Fetching https://restws-drupal.redesign.devdrupal.org/api-d7/node/2125253.json gives

{"book_ancestors":[],"comments":[],"body":[]}

while https://restws-drupal.redesign.devdrupal.org/node/2125253 gives

Page not found

.

I guess this is a restws bug.