Description:
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When i use grpc extension to connection some golang grpc server.
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class Client extends \Grpc\BaseStub {
    public function __construct($hostname, array $opts, $channel = null) {
        parent::__construct($hostname, $opts, $channel);
    }
}

------------------------------------------

Error:
Assertion failed: (((ht)->gc.refcount == 1) || ((ht)->u.flags & (1<<6))), function zend_hash_str_del, file /Users/xxx/opt/php-7.2.8/Zend/zend_hash.c, line 1162.


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The php version is 7.2.8.