"svn mv src_dir dst_dir" unhide the .svn directory

I'm on windows NT 4.0 and...
 
when I move a directory under version control with "svn move..." the ".svn" directory inside the moved directory looses the hidden attribute and become visible.
 
What you think about ???
 
Is this defect already signaled ???
 
bye
 
 
PS
subversion is a great product... and is open source... what can I desire more ??? ;-)
 

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Stefano Spinucci, Italy
		
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