[Samba] Samba 4.2.0: Group write permission not honored

[Thomas Schulz]

For anyone considering using Samba 4.2.0, be aware that there is a
problem with group write permission not being honored.

This is seen on both Linux and Solaris. We have a setup where we have
project directory trees where the files are owned by various users but
also by a group that the various users are a member of. The group
permissions are set to allow group write access. With Samba 4.1.* and
earlier everyone in the group can create files in these directories.
With Samba 4.2.0, we get an 'Access is denied' error.

Tom Schulz
Applied Dynamics Intl.
schulz at adi.com