[stable21] Fix security issues when copying groupfolder with advanced ACL #29367
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Using advanced ACL, it is possible that an user has access to a directory but not to a subdirectory, so the copying use Common::copyFromStorage instead of Local::copyFromStorage. Fix nextcloud/groupfolders#1692 Signed-off-by: Carl Schwan <carl@carlschwan.eu>
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Oct 22, 2021
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backport of #29362