rsync not deleting file (which was hard linked)

[Eric Shubert]

I have a situation that I think might be a bug, but would like someone 
else to have a look at before I create a report.

Here's a list of the source:
drwxr-xr-x. 8 root root    4096 Feb 24 10:56 current
-rw-r--r--. 2 root root 2427204 Feb 21 12:18 
qmailadmin-toaster-1.2.16-1.4.1.src.rpm
-rw-r--r--. 2 root root   24875 Mar  1  2012 
qmailmrtg-toaster-4.2-1.3.7.src.rpm
-rw-r--r--. 2 root root  331753 Mar  8  2012 
qmail-toaster-1.03-1.3.22.src.rpm

Each of these files is linked to an identically named file in the 
"current" directory.

Then I run rsync as such:
rsync --archive \
       --compress \
       --delay-updates \
       --delete-after \
       --hard-links \
       "$source"/* \
       "$target"

Afterwards, at the target site:
drwxr-xr-x 8 root root    4096 Feb 24 10:56 current
-rw-r--r-- 1 root root 2416365 Aug  2  2012 
qmailadmin-toaster-1.2.16-1.4.0.src.rpm
-rw-r--r-- 2 root root 2427204 Feb 21 12:18 
qmailadmin-toaster-1.2.16-1.4.1.src.rpm
-rw-r--r-- 2 root root   24875 Mar  1  2012 
qmailmrtg-toaster-4.2-1.3.7.src.rpm
-rw-r--r-- 2 root root  331753 Mar  8  2012 
qmail-toaster-1.03-1.3.22.src.rpm

The qmailadmin*1.4.0.src.rpm file was deleted from the "current" 
directory, but the other in the target root remain (link count was 2, is 
now 1).

I can't figure why the 1.4.0 file isn't being removed. It's not removed 
on subsequent runs either.

Anyone have some insight?

TIA.

-- 
-Eric 'shubes'