Fix disappearing loiter circles

When video streaming was enabled, toggling between mini
video and full screen video mode would make the circles
representing loiter circles on the flight path disappear. This
fixes that issue.

src/PlanView/SimpleItemMapVisual.qml

@@ -97,14 +97,11 @@ Item {
         target: _missionItem.isSimpleItem ? _missionItem : null
 
         onLoiterRadiusChanged: {
-            _loiterVisual.blockSignals = true
-            _loiterVisual.clockwiseRotation = _missionItem.loiterRadius>= 0
-            _loiterVisual.blockSignals = false
-            _loiterVisual.radius.rawValue = Math.abs(_missionItem.loiterRadius)
+            _loiterVisual.handleLoiterRadiusChange()
         }
 
         onCoordinateChanged: {
-            _loiterVisual.coordinate = _missionItem.coordinate
+            _loiterVisual.handleCoordinateChange()
         }
     }
 
@@ -147,6 +144,17 @@ Item {
             property alias radius:            _mapCircle.radius
             property alias clockwiseRotation: _mapCircle.clockwiseRotation
 
+            function handleLoiterRadiusChange() {
+                blockSignals = true
+                clockwiseRotation = _missionItem.loiterRadius>= 0
+                blockSignals = false
+                radius.rawValue = Math.abs(_missionItem.loiterRadius)
+            }
+
+            function handleCoordinateChange() {
+                coordinate = _missionItem.coordinate
+            }
+
             onCoordinateChanged:              _mapCircle.center = coordinate
 
             sourceItem: QGCMapCircleVisuals {
@@ -177,6 +185,11 @@ Item {
                     }
                 }
             }
+
+            Component.onCompleted: {
+                handleLoiterRadiusChange()
+                handleCoordinateChange()
+            }
         }
     }
 }