trac installer broken in virtualmin pro 3.61 (4 bugs)

trac installer script is broken on a new virtualmin installation:

1) installs package python-svn but doesn't install python-pgsql

2) doesn't offer mysql as alternative, only pgsql

3) doesn't create the user "sitename" in postgress database

4) the trac access to svn fails when usernames are of form user@domain
with following error:

Warning: Can't synchronize with the repository (Unsupported version control system "svn": "No module named svn" ). Look in the Trac log for more information.

5) protecting the trac directory changes the users of trac. Maybe not a bug, however strange.

I figured a manual workaround for 1-3, but not yet for 4.

Status: 
Closed (fixed)