ZFS ACL inheritance with aclmode=passthrough

[Andrey Russev]

Hello,
it looks like ZFS ACL inheritance implementation in 8.4-RELEASE does not 
match the manual page. In case aclinherit=restricted and 
aclmode=passthrough all permissions inherited from allow ACEs are 
masked(?) by group permissions. For example, ACEs of parent directory are

group:wheel:rwxp----------:-d----:allow
      owner@:rwxp--aARWcCos:------:allow
      group@:r-x---a-R-c--s:------:allow
   everyone@:r-x---a-R-c--s:------:allow

but ACEs of child directory are

group:wheel:r-x-----------:-d----:allow
      owner@:rwxp--aARWcCos:------:allow
      group@:r-x---a-R-c--s:------:allow
   everyone@:r-x---a-R-c--s:------:allow

I think that first entry must be copied without modification. It works 
this way in 8.1-RELEASE.

I believe that this difference was introduced by r224174 in lines:

1732                zfs_acl_chmod(vap->va_type, acl_ids->z_mode,
1733 	  	  	(zfsvfs->z_acl_inherit == ZFS_ACL_RESTRICTED),
1734 	  	  	acl_ids->z_aclp);

because function zfs_acl_chmod applies group mask to all allow ACEs if 
third argument is non zero and everything works as expected when 
aclinherit=passthrough. Am I right?

Thanks,
Andrey.