I can also add my reproducible experience: I have text file with some Google URLs and replacing (apostroph) with (new line plus apostroph) results in program freeze (regardless of version, but anyway, I use 4.5.2.2240 now).
-- <http://forum.pspad.com/read.php?4,35401,35550> PSPad freeware editor http://www.pspad.com
