Copying and pasting even 2 or three lines of code is a real pain.
This bug appeared first in 0.4.833 and hasn't gone away after I upgraded to 0.4.938.
However it was not present in previous releases.
There is a 4 second delay after pressing Ctrl-V.
I noticed this happens only on some files - at least the files containing Specs and Specs2 tests, but I'm not sure if it is not present somewhere else (but I cannot reproduce it now).
The specs files need not be large to trigger this.
How to debug it? Is there a workaround for this?