doContains bars us to store 0 (zero)

[kaczenski]

    /**
     * {@inheritdoc}
     */
    protected function doContains($id)
    {
        return (bool) $this->memcache->get($this->prefix.$id);
    }

The boolean cast bars us to store data that is casted to false. We checked it is possible to save and fetch data like 0 (ZERO). But the doContains() method make us believe it is not saved.

[mevdschee]

It should either be "!==null" or "!==false" (I would have to consult the extension). Maybe you can do a PR?

[mevdschee]

Fixed in mevdschee/TqdMemcacheBundle@a7d9765