When Justify text alignment is applied to a paragraph, it should not increase the space between word which are before the last tab symbol for each line.

Steps to reproduce:
- Open RadRichTextBox in Paged layout mode, default A4 section size
- Type the following text:
-- "Welcome Welcome Welcome Welcome Welcome "
-- then tab symbol
-- then "test1 test1 uncharacteristically"
- Switch paragraph alignment to Justify.

Expected: The space between 'Welcome' words remains the same in Left and Justify alignments.
Actual: The space between 'Welcome' words is increased when Justify alignment is chosen, as compared to when Left is chosen.