bug#8527: cp/mv in coreutils don't respect the default ACL of parent

[f0rhum]

And creations in the copied dir are OK:
Here the ~faulty~ acl for memory:
# file: srv/test/200402/
USER   me               rwx  rwx
user   reader           R-X  r-x
GROUP  writers          RWX  rwx
group  reader           R-X  r-x
group  writers          RWX  rwx
mask                    ---  rwx
other                   ---  ---

Then creations
address@hidden:/srv$ mkdir test/200402/dir
address@hidden:/srv$ touch test/200402/dir/file
   
address@hidden:/srv$ getfacl -Rt test/200402/dir
# file: test/200402/dir
USER   me               rwx  rwx
user   reader           r-x  r-x
GROUP  writers          rwx  rwx
group  reader           r-x  r-x
group  writers          rwx  rwx
mask                    rwx  rwx
other                   ---  ---

# file: test/200402/dir/file
USER   me               rw-     
user   reader           r-X     
GROUP  writers          rwX     
group  reader           r-X     
group  writers          rwX     
mask                    rw-     
other                   ---

Are OK regard to the parent's correct "Default mask", but only me as the USER 
can do this because other writers lost rwx on parent copy (200402 dir)