A POST to create a new node didn't invalidate the preceeding GET on /nodes to find whether the node already exists. As a result, the negative answer was cached, and new nodes were created even though the node already existed.
A POST to create a new node didn't invalidate the preceeding GET on /nodes to find whether the node already exists. As a result, the negative answer was cached, and new nodes were created even though the node already existed.