Merge branch 'feature/0722-music' into test-online

src/views/music-library/music-sheet/modal/music-operation.tsx

@@ -1659,7 +1659,7 @@ export default defineComponent({
                               path={`musicSheetSoundList[${index}].track`}
                               rule={[
                                 {
-                                  required: validSoundNum() > 1,
+                                  required: validSoundNum() > 1 && item.track ==null,
                                   message: '请选择所属轨道'
                                 }
                               ]}
@@ -1689,7 +1689,7 @@ export default defineComponent({
                                     )
                                   }
 
-                                  if (value && !forms.multiTracksSelection.includes(value)) {
+                                  if (value != null && !forms.multiTracksSelection.includes(value)) {
                                     forms.multiTracksSelection.push(value)
                                   }
                                   item.track = value