DESCRIPTION
When a source folder is moved into a destination folder already containing
a folder of the same name as the source folder, a prompt is given to either
skip or replace.  Upon choosing replace, the source folder is moved over
the subfolder, clobbering any existing files or folders in that subfolder.
Rather than doing this, all existing files and folders should be retained,
and the source folder should also be moved to that folder.

STEPS TO REPRODUCE
1. Create a folder hierarchy
   /music/rock/artist1/album1
   /music/new/artist1/album2
2. Open a Nautilus window on /music/rock
3. Right click on artist1 and select cut
4. Navigate to /music
5. Right click on rock and select paste
6. Select replace

ACTUAL BEHAVIOR
   /music/rock/artist1/album2
   (album1 is deleted)
   
EXPECTED BEHAVIOR
   /music/rock/artist1/album1
   /music/rock/artist1/album2
   (album1 is retained)

ADDITIONAL INFORMATION
The expected behavior is that used by all file managers I am familiar
with including Windows Explorer and KDE Konqueror.

Nominating severity = critical as this has resulted in data loss for me,
and has the potential to do the same for many users expecting different
behavior.