1. In the projectviewer dockable, select a file then click diff in the subversion menu, svn diff will create a jdiff.
2. Then select a folder in projectviewer and then do svn diff, it will create a svn diff.
3. After select a file again and do svn diff, it will still create a svn diff, in which case i expected it to create a jdiff.
I did some track and found that at step 3 the pv node is considered as a folder.
In all these step i did not check create svn diff in the svn diff dialog.