Object serialization format discrepancy between Swagger OAS 3 and swagger hub generated URL

Swagger OAS3 specifies selization format for object parameter (explode: false, in: path, style: label) shall be delimited by ","   when I have created YAML file in swagger hub with object parameter having style label, it has generated URL and object parameters are delimited by "." 

There swagger doc and swagger hub generated fomrats are not aligned, can somebody let me know correct serilization format.

Thanks,

Hanuma