Servoy 6.1 rc2

Hi guys.

Reckon this is a bug or my code is funny?
Concatenating two arrays holding JSLabel objects and assigning the result to the first array adds the second array to the first one as one array type element.

Before concatenation, two arrays are like this:
[attachment=1]1.png[/attachment]

After executing tempLabels = tempLabels.concat(tempForm.getLabels()); - my resulting array is this:
[attachment=0]2.png[/attachment]

The actual result of tempLabels.concat(tempForm.getLabels()) is a proper array of JSLabels, however.

This is Version: 6.1.0 rc3 - build 1415.

Used to work well in Version: 6.0.6 - build 1232.

Cheers,
Maria