Użytkownik Paul McNett napisał:
> I believe these to be good changes, and all relevant tests still pass,
> but please test on your applications and let me know.

I repeat it again.
Such approach, I mean checking changes across data tree level
is faster if there are no changes in data at all.
But it's enough I change only one, the last node in branch,
we get large overhead in db layer trying to save every unchanged
node in dataset.
In such situation, checking changes in depth, as it was previously,
costs much less.
These changes increase saving time in one of my cases (very large and deep 
parent-child
data tree) for about 8 seconds.
-- 
Regards
Jacek Kałucki

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