title: Creating folders in Cygwin results in incorrectly ordered permissions, failure to open files
body: <p>This is something recent with my Cygwin on Win 10. If I do "mkdir folder", then in Windows, checking folder properties and selecting the Security tab gives the popup: The permissions on folder are incorrectly ordered, which may cause some entries to be ineffective.
  If I then create a file in that folder from Windows, in order to open that file, I have to first remove one of the permissions entries under Properties>Security>Advanced for that file. That entry indicates "deny special access for the owner of the file".
  What is causing incorrect ordering of permissions and also what I believe is the wrong permissions to be assigned to newly-created folder in Cygwin?</p>