Hi Laurent,
I'd now upgraded my VM to the latest master and the problem with deletiion is solved.
As i read did you changed something that a reseller can't add a alias if the customer hast the value "-1"...
Since this change on my vm is only 1 customer available to add him an alias.
I'd 3 demo customer added and all have more than 1 alias as value, but only one domain (SQL Query aliasname ASC) will appear in the selection.
Sascha