v0.11: backport llbsolver: fix policy rule ordering #4215
Merged
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Backports #4014 to v0.11 so we can pull this into moby v24.
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The older of rules in policy matters. Eg. in [DENY *, ALLOW ref] mixing the order would deny all sources so map can't be used to deduplicate the rules.
(cherry picked from commit 22d8446)