Using CommonDialog with the content property set to a simple ListView and setting a size for that makes plasmate freeze when displaying the dialog. Evaluating the code, I get warnings in the plasmate console:

Warning: file:///usr/lib/kde4/imports/org/kde/plasma/components/Dialog.qml:196:5: QML QDeclarativeLoader_QML_166: Binding loop detected for property "sourceComponent"

Code for the CommonDialog:

            PlasmaComponents.CommonDialog {
                id: "areaSelector"
                titleText: i18n("Select area")
                 content: ListView {
//                     width: 200
//                     height: 200
                    delegate: Text {
                        anchors.margins: 3
                        text: name
                    }
                    model: ListModel {
                        ListElement { name: "Farvandet syd for Fyn" }
                        ListElement { name: "Farvandet nord for Fyn" }
                        ListElement { name: "Indre danske farvande" }
                        ListElement { name: "Bælthavet" }
                        ListElement { name: "Kattegat" }
                    }
                 }
            }
        }
        

If there is no size set, the dialog will not be usable. Setting the size causes the freeze.

Using other QML components also causes a freeze, if a size is set.

Reproducible: Always