Weird behaviour of `contains` with `json_pointer`

[kpeeters]

The following code tests the presence of a particular attribute using a json pointer, in two different ways. It prints '1' for the first (which is correct), but '0' for the second line.

#include "json.hpp"
#include <fstream>
#include <iostream>

int main(int, char **)
    {
    nlohmann::json j = {
        {"pi", 3.141},
        {"happy", true},
        {"name", "Niels"},
        {"nothing", nullptr},
        {"answer", {
               {"everything", 42}
        }}
    };

    nlohmann::json::json_pointer ptr("/name");
    std::cout << j.contains( nlohmann::json::json_pointer("/name") ) << std::endl;
    std::cout << j.contains( ptr ) << std::endl;
    }

Any ideas? I would have guessed these are equivalent, but obviously they are not. Tested with g++ 7.4 and clang++ 8.0 using json.hpp 3.7.0.

[nlohmann]

Should be fixed in develop branch. Can you please check?

[kpeeters]

That indeed fixes it, sorry for the bandwidth.