Using JIRA 6.4.12 with IE 11, while paste comments using CTRL + V the carriage returns got lost. With SHIFT + INSERT it works or using the mouse context menu. With FF it works. This is not in general an IE issue, I guess, because with JIRA 6.1.5 it worked fine.
Is there a way to solve this, because I often use CTRL + C and then CTRL + V.