[SOGo] Security issue #6092 needs review (email account information leak)

[Victor Rubiela]

Yes I confirm this issue on 5.12.4.  Temporary for prevent this leak we 
disable search with  apache conf:

# Disable searching /SOGo/so/.../usersSearch?search=...
<LocationMatch "^/SOGo/so/[^/]+/usersSearch$">
    RewriteCond %{ENV:break} ^$
    RedirectMatch 200 "^/SOGo/so/[^/]+/usersSearch$"
</LocationMatch>