showSaveDialog without filters bug

main.js

let { app, dialog } = require('electron')

app.whenReady().then(async () => {
  // case 1: without filters (BUG)
  {
    let { canceled, filePath } = await dialog.showSaveDialog({
      defaultPath: "change-me.txt",
    })
    if (canceled) return
    await dialog.showMessageBox({
      message: `Selected file path (without filters): ${filePath}`
    })
  }

  // case 2: with filters (OK)
  {
    let { canceled, filePath } = await dialog.showSaveDialog({
      defaultPath: "change-me.txt",
      filters: [{ name: "Text Files", extensions: ["txt"] }]
    })
    if (canceled) return
    await dialog.showMessageBox({
      message: `Selected file path (with filters): ${filePath}`
    })
  }
})

package.json

{
  "name": "dangerous-hill-rain-7reyd",
  "productName": "dangerous-hill-rain-7reyd",
  "description": "My Electron application description",
  "keywords": [],
  "main": "./main.js",
  "version": "1.0.0",
  "author": "Jamie",
  "scripts": {
    "start": "electron ."
  },
  "dependencies": {},
  "devDependencies": {
    "electron": "25.1.0"
  }
}

electron/electron#38794