When pasting multiline text from GTK don't separate each block with two newlines
Due to some internal handling in GTK itself, we end up with text copied from Firefox where a newline is represented as CRLF (\r\n); since the doPaste() method replaces each \n with \r, we ended up with \r\r, which ultimately led to extra newlines in the pasted code. To fix the issue simply detect the CRLF case and replace each \r\n with \r.
To test, copy some multiline text from Firefox, open vim in konsole and paste, you end up with two newlines between each block of text. Compare the results after applying this patch
BUG: 421480 FIXED-IN: 20.08 CHANGELOG