TextItem#getValueAsString() returns null instead of empty String

[NaZo]

First a simple question:

Is it the intended behaviour that TextItem#getValueAsString() returns null if the field is empty? I would expect an empty String.

[Isomorphic]

Yes, this is intended and very desirable, so that values are not changed by merely beginning to edit.

[NaZo]

OK, you should say that in the method's JavaDoc.