When selecting and copying all characters between the quotes in the string "Test\r\n" including the '\r' and '\n' characters, the '\r' and '\n' characters causes line breaks and line continuation instead of just appearing as the copy of the original string of characters as I expected.
I consider this to be a bug but would like to hear what others think before filing a bug report. I did a search and found lots of old reports on variations on this behavior, some of then were marked Fixed or Obsolete, so I couldn't really get a handle on how JetBrains intend for IDEA to work in this situation.
I do suspect that the current behavior is a tradeoff since IDEA doesn't store information along with text placed in the clipboard buffer that would allow more 'intelligent' pasting.
Hit me on the head if I'm out cycling (as they say here in Sweden)...