'+' concat Binding Expressions function of class StringExpression not working as intended

[Johnny-P-Quarry]

This issue is related to issue #233
Unless I'm not doing it right, it seems that if I use the bind expression '+' for two StringProperty, the second property explicitly returns the toString function of SFXDelegate Trait

boundStringProperty.onChange({(s,o,n) => println(s"newValue: ${n}")}) boundStringProperty <== bindingStringProperty1 + bindingStringProperty2 bindingStringProperty1 = "HelloWorld "

Result is:

newValue: HelloWorld [SFX]StringProperty [bean:

I am forced to use concat. not a big deal, just an annoyance.