Revert "fix(bar): defer update to next cycle"

This reverts commit 2fcd219c34.

Modules/Bar/Bar.qml

@@ -142,18 +142,13 @@ Item {
     }
   }
 
-  // Initialize models — deferred via Timer (Qt.callLater can fire in same event cycle)
-  // to avoid re-entrant incubation: Component.onCompleted fires during finalization,
+  // Initialize models — deferred to next event-loop tick via Qt.callLater to avoid
+  // re-entrant incubation: Component.onCompleted fires during QQmlObjectCreator::finalize,
   // and ListModel.append synchronously creates Repeater delegates whose own finalization
   // can corrupt the V4 heap (SIGSEGV in QV4::Object::insertMember).
-  Timer {
-    id: initModelsTimer
-    interval: 0
-    onTriggered: root._initModels()
-  }
   Component.onCompleted: {
     Logger.d("Bar", "Bar Component.onCompleted for screen:", screen?.name);
-    initModelsTimer.restart();
+    Qt.callLater(root._initModels);
   }
 
   function _initModels() {

Modules/Bar/Extras/BarWidgetLoader.qml

@@ -72,33 +72,8 @@ Item {
   Loader {
     id: loader
     anchors.fill: parent
-    asynchronous: false
-
-    // Deferred activation to prevent re-entrant incubation crash:
-    // When ListModel.append() creates this delegate, the Repeater is mid-incubation.
-    // If this Loader activates synchronously (asynchronous: false) during delegate
-    // finalization, it triggers nested QQmlIncubatorPrivate::incubate which corrupts
-    // the V4 heap (SIGSEGV in QV4::Object::insertMember).
-    // Deferring to the next event loop iteration breaks the nesting.
-    property bool _ready: false
-    active: _ready && root.checkWidgetExists() && (root.reloadCounter >= 0)
-
-    Timer {
-      id: activateTimer
-      interval: 0
-      onTriggered: loader._ready = true
-    }
-
-    Component.onCompleted: activateTimer.start()
-
-    // Reset _ready when reloadCounter changes to force a deferred re-activation
-    Connections {
-      target: root
-      function onReloadCounterChanged() {
-        loader._ready = false;
-        activateTimer.restart();
-      }
-    }
+    asynchronous: true
+    active: root.checkWidgetExists() && (root.reloadCounter >= 0)
 
     sourceComponent: {
       // Depend on reloadCounter to force re-fetch of component

Modules/Bar/Widgets/ControlCenter.qml

@@ -50,7 +50,7 @@ NIconButton {
   // If using distro logo, don't use theme icon.
   icon: (customIconPath === "" && !useDistroLogo) ? customIcon : ""
   tooltipText: {
-    if (PanelService.getPanel("controlCenterPanel", screen)?.isPanelOpen) {
+    if (!screen || PanelService.getPanel("controlCenterPanel", screen)?.isPanelOpen) {
       return "";
     } else {
       return I18n.tr("tooltips.open-control-center");

Modules/Bar/Widgets/MediaMini.qml

@@ -408,7 +408,7 @@ Item {
                }
 
     onEntered: {
-      if ((isVertical || scrollingMode === "never") && !PanelService.getPanel("mediaPlayerPanel", screen)?.isPanelOpen) {
+      if (screen && (isVertical || scrollingMode === "never") && !PanelService.getPanel("mediaPlayerPanel", screen)?.isPanelOpen) {
         TooltipService.show(root, title, BarService.getTooltipDirection(root.screen?.name));
       }
     }