Hello (this is for amusement only - an interesting experience),

if anyone would like to know why the idea with experimental branch of
minimals didn't work out in its current form (I wanted to have a full
tree and a separated tree with fixes only, but it took files from
current and experimental in an arbitrary order).

This is an answer from the mailing list:

------

Duh.  I realize now that it's perfectly reasonable for you to be able to
reproduce the problem while I can't.  Versions 2.6.9 and earlier of
rsync sort the file-list using the C library's quicksort, an unstable
sort, so the results in case of duplicate files are highly sensitive to
both the C library implementation and the order of directory entries in
the source (which in turn is sensitive to the filesystem
implementation).  You probably have both a different C library and a
different filesystem than I do.

In any case, since rsync 3.0.0pre1, the default file-list sorting
algorithm is a mergesort, which is stable, so files from earlier source
arguments take priority.  If you upgrade to an rsync 3.0.0pre* version,
your scenario should work consistently.  If it doesn't, that's a bug we
should try to fix.
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