"UnkwownError" happened for a line of "var"

[MRYingLEE]

var _Comm_id, _Comm_protocol_version_minor;

met "UnkwownError: ":

But, if I split the statement into 2 lines:

var _Comm_id;
var _Comm_protocol_version_minor;

there is no error.

If I split the cell into 2, no error also.

Most likely it is a bug. Please check.

[DerThorsten]

fixed once #25 lands