[Samba] 4.2 git to stable 4.1 overwrite

[steve]

Hi
Politics dictate I go from an everything-works 4.2 git ad-DC to stable.

I have built the latest 4.1 source. Tomorrow I have downtime. I propose
to:

Shut down the other DC
Then, on the git DC:
rsync /usr/local/samba somewhere safe
and
make install
from the 4.1 folder over what's already there.

Restart
Restart the other DC.

Does that get me there?
Cheers,
Steve