Should "btrfs filesystem defrag -r" follow symlinks?

[A L <mail@xxxxxxxxxxxxxx>]

It is not clear from the man page at 
https://btrfs.wiki.kernel.org/index.php/Manpage/btrfs-filesystem if 
`btrfs filesystem defrag -r` should follow symbolic links or not. 
Perhaps the man-page should mention which behaviour is default.

I did some basic tests and it seems that on my setup it does not follow 
symlinks.
Perhaps improve defragment with an option to follow symlinks and/or 
subvolumes should be added?

Thanks!