Workaround strange lost clicks possible Qt bug

src/MissionEditor/MissionEditor.qml

@@ -253,8 +253,10 @@ QGCView {
     }
 
     function setCurrentItem(sequenceNumber) {
+        if (sequenceNumber !== _currentMissionIndex) {
             editorMap.polygonDraw.cancelPolygonEdit()
             _currentMissionItem = undefined
+            _currentMissionIndex = -1
             for (var i=0; i<_visualItems.count; i++) {
                 var visualItem = _visualItems.get(i)
                 if (visualItem.sequenceNumber == sequenceNumber) {
@@ -266,6 +268,7 @@ QGCView {
                 }
             }
         }
+    }
 
     property int _moveDialogMissionItemIndex
 

src/MissionEditor/MissionItemEditor.qml

@@ -42,7 +42,6 @@ Rectangle {
 
     MouseArea {
         anchors.fill:   parent
-        visible:        !missionItem.isCurrentItem
         onClicked:      _root.clicked()
     }