Error message every other time

[plushy]

This one's pretty weird:
http://sqlfiddle.com/#!12/d1096/1
If you run this query a few times you will see that the error message shows up every other time.
The error msg itself is caused by JDBC not supporting COPY FROM STDIN but it's not really important.
I think it causes the connection to that specific db to somehow crash or remain opec cause if you run the first query and it gives error then running another query to that db will turn out blank.

The problem shows up only if non-standard line terminator is used or the whole thing is on one line.