[ticket/13011] Do not apply bbcode to whole text when selecting first 2 chars.

PHPBB3-13011
Merge pull request #2988 from prototech/ticket/13011

[ticket/13011] Do not apply bbcode to whole text when selecting first 2 chars.

* prototech/ticket/13011:
  [ticket/13011] Do not apply bbcode to whole text when selecting first 2 chars.