Unexpected behaviour when token text has zero length

[lonely-lockley]

When creating a new token with code like this:

var indentation = CommonToken.fromType(Lexer.INDENTATION, text);

the text variable may sometimes be an empty string (zero-length). In such cases indentation.text returns undefined. The expected behaviour is to get back the same value you put into token.

antlr4ng version 3.0.4
antlr4ng-cli version 2.0.0