Multiple unique substitutions not supported

[jnus]

Having a variable with multiple unique substitutions, the action substitutes the in place variables the wrong way.

E.g.
Username: john
DatabaseName: foo
DatabaseUrl: sql.company.com
ConnectionString = "server=#{ServerUrl};database=#{DatabaseName};Username=#{Username}"
Will render it as:
ConnectionString = "server=sql.company.com;database=sql.company.com;Username=john"

Should be:
ConnectionString = "server=sql.company.com;database=foo;Username=john"