Unix/setfacl: set directory default acl for correct permission inheritance

I have several svn repositories in /projects/svn which should be writeable by 2 users,
mine (unix), and wwwrun (apache, for svn over http)

newly created folders and file should be read/writeable by both users

i played around with setfacl but couldn't get it working the way i need it

my attempt was as follows:

unknown:/projects/svn # setfacl -b .
unknown:/projects/svn # setfacl -m u:unix:rwx,u:wwwrun:rwx,m:rwx .
unknown:/projects/svn # setfacl -dm u:unix:rwx,u:wwwrun:rwx,m:rwx .
unknown:/projects/svn # getfacl .
# file: .
# owner: unix
# group: users
user::rwx
user:wwwrun:rwx
user:unix:rwx
group::r-x
mask::rwx
other::r-x
default:user::rwx
default:user:wwwrun:rwx
default:user:unix:rwx
default:group::r-x
default:mask::rwx
default:other::r-x

unknown:/projects/svn # su -s /bin/bash wwwrun
wwwrun@unknown:/projects/svn> md test
wwwrun@unknown:/projects/svn> getfacl test
# file: test
# owner: wwwrun
# group: www
user::rwx
user:wwwrun:rwx                 #effective:r-x
user:unix:rwx                   #effective:r-x
group::r-x
mask::r-x
other::r-x
default:user::rwx
default:user:wwwrun:rwx
default:user:unix:rwx
default:group::r-x
default:mask::rwx
default:other::r-x

wwwrun@unknown:/projects/svn>

as you can see, my user (unix) has only r-x (as effective) permissions