Textbox wrong formatting for second line if space is the first character of first line

[fahadnabbasi]

Version

1.6.4

Test Case

http://jsfiddle.net/fahadnabbasi/154dbmtt/1/

Steps to reproduce

Resize down the text box so that the text goes to 4 or more line

Expected Behavior

The text on second line should be green

Actual Behavior

The text on second line is Black

If you remove the first space from the name, you will see it works perfectly fine but if we have space at the starting of the text, it skips the formatting for second line.
This happens only with Textbox not with IText