problem with multivalues

[almgun]

I try to select multiple values.The selection works fine but the value in the control does not "survive" a submit. In fact, the control will not show multi-values from a document of any kind. I use a select2Picker in conjunction with a hidden input control. I set the multipleSeparator in the hidden-input control to ',' (comma) and that triggers the multivalue behviour. However, as I said it will not render after a save. In the emitted source code I notice a extlib.dijit.BootstrapPickerSelect2 with a currentValue property. The problem seems to rise when this property contains a comma separated list (like "currentValue":"r1b2,r1b3") The list shows up blank in the UI.
Tested version 1.0.0.201407020945