HarmonyOS bindSheet导致onBackPress回调链路被打破

@Entry
@Component
struct MainPage {
  @State isShow: boolean = false
  @State sheetHeight: number = 200
  
  build() {
    Column() {
      Button("Open Sheet")
        .onClick(() => {
          this.isShow = true;
        })
        .fontSize(20)
        .margin(10)

      // Bind the sheet with custom dismiss logic
      .bindSheet($$this.isShow, this.sheetBuilder(), {  
        height: this.sheetHeight,
        shouldDismiss: (event) => {
          // Custom dismiss logic
          console.log('Custom shouldDismiss triggered');
          // Ensure that onBackPress can still be handled
          return true;  // Return true to allow the default dismiss behavior
        }
      })
    }
    .justifyContent(FlexAlign.Center)
    .alignItems(HorizontalAlign.Center)
    .width('100%')
    .height('100%')
  }

  // Define the content of the sheet
  @Builder
  sheetBuilder() {
    Column() {
      Text("Sheet Content")
        .fontSize(20)
        .margin(10)
      
      Button("Close")
        .onClick(() => {
          this.isShow = false;
        })
        .fontSize(20)
        .margin(10)
    }
    .width('100%')
    .height('100%')
  }

  onBackPress() {
    // Custom back press handling
    console.log('MainPage onBackPress triggered');
    if (this.isShow) {
      this.isShow = false;
      return true;  // Indicate that the event has been handled
    }
    return false;  // Let the system handle the event if not handled
  }
}