New Post: post-install action in ManagedProject

Hi, Oleg!
Now I use v1.0.40.2-HotFix.
In custom dialog I set:
MsiRuntime.Data["DATABASE_CONNECTION_STRING"] = @"Data Source=.\SQLEXPRESS;Initial Catalog=RequestManagement;Integrated Security=SSPI".
e.Data["DATABASE_CONNECTION_STRING"] in AfterInstall handler returns "Data Source".