[Bug 58155] Use space-saving APFS clones instead of copying file data blocks to each WINEPREFIX on macOS

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58155

--- Comment #11 from Zeb Figura  ---
FWIW, the right solution to this is probably not to use APFS clones at all, but
rather to implement Wine reparse points, and invent a Wine-specific reparse
point for prefix copies. This would no longer rely on any specific OS. I
believe Alexandre specifically prescribed this somewhere but I do not remember
where.