Fix audio thumbs sometimes not appearing on clip quick insert

CCBUG: 417110

src/bin/projectclip.cpp

@@ -201,6 +201,7 @@ void ProjectClip::updateAudioThumbnail(const QVector<uint8_t> audioLevels)
 {
     audioFrameCache = audioLevels;
     m_audioThumbCreated = true;
+    updateTimelineClips({TimelineModel::ReloadThumbRole});
 }
 
 bool ProjectClip::audioThumbCreated() const

src/timeline2/view/qml/Clip.qml

@@ -136,7 +136,7 @@ Rectangle {
         width = clipDuration * timeScale;
         if (parentTrack && parentTrack.isAudio && thumbsLoader.item) {
             // Duration changed, we may need a different number of repeaters
-            thumbsLoader.item.reload()
+            thumbsLoader.item.reload(1)
         }
     }
 
@@ -163,7 +163,7 @@ Rectangle {
     onForceReloadThumbChanged: {
         // TODO: find a way to force reload of clip thumbs
         if (thumbsLoader.item) {
-            thumbsLoader.item.reload()
+            thumbsLoader.item.reload(0)
         }
     }
 

src/timeline2/view/qml/ClipAudioThumbs.qml

@@ -16,7 +16,10 @@ Row {
         onTriggered: processReload()
     }
 
-    function reload() {
+    function reload(reset) {
+        if (reset == 0) {
+            waveformRepeater.model = 0
+        }
         waveTimer.start()
     }
     onMaxWidthChanged: {

src/timeline2/view/qml/ClipThumbs.qml

@@ -13,8 +13,8 @@ Row {
     property int thumbWidth: container.height * root.dar
     property bool enableCache: clipRoot.itemType == ProducerType.Video || clipRoot.itemType == ProducerType.AV
 
-    function reload() {
-        console.log('+++++\n\ntriggered ML thumb reload\n\n++++++++++++++')
+    function reload(reset) {
+        //console.log('+++++\n\ntriggered ML thumb reload\n\n++++++++++++++')
         clipRoot.baseThumbPath = clipRoot.variableThumbs ? '' : 'image://thumbnail/' + clipRoot.binId + '/' + Math.random() + '/#'
     }