[Resending as debbugs doesn't CC the reporter.]
Indeed, if you haven't dragged far enough to the right, the LF will not be copied. But if you drag beyond the end of the line, you will see that suddenly all empty space beyond the end-of-line will get highlighted too -- this means that the LF was selected; then doing 'Paste' after 'Copy' will paste the LF too. Please try it, and report back. Benno