[Orgmode] Moving Subtree Weirdness

[srandby]

Here is something weird. When I move a subtree using M-S-<up> or 
M-S-<down>, the content of the first section of the subtree becomes 
centered.

* Subtree
** Section 1
Content 1
** Section 2
Content 2

changes to

* Subtree
** Section 1
                    Content 1
** Section 2
Content 2

It is as if M-s was used on the 'Content 1' line.

I find this annoying and inconvenient so I don't use these commands to 
move subtrees.  I haven't tested the other subtree moving commands. 
Anyway, M-S-<up>/<down> requires me to press three keys at the same time 
with my left hand, so not using those commands is no big deal.

Scott Randby