[Samba] smb_acl_to_posix: ACL is invalid for set (Invalid argument) - in 3.5.6

[lejeczek]

hi everybody

this happens when a Domain Admin adds a user-permission set 
via properties/security in Windows

folder_A was created by a Domain Admin
new permission - Modify - was added over the folder_A to the 
user_A
user_A created a file_A.txt in folder_A
now Domain Admin goes back to the properties of folder_A 
wanting to change/modify security entries
operation fails
on windows: "An error occurred while applying security 
information to: ..\folder_A\files_A.txt. Access is denied"
on samba: as in the subject

that could a bug, no?

thanks