app.moveToApplicationsFolder() fails unexpectedly when running in a disk image

[javan]

• Electron Version: 2.0.0
• Operating System: macOS 10.13.4

Expected Behavior
Calling app.moveToApplicationsFolder() when an application is launched from a disk image (.dmg) should move the application from the disk image to the Applications folder.

Actual behavior

• Finder alerts The item can't be moved to the Trash because it can't be deleted.
• The application stops responding and must be force quit
• The application is partially (?) moved to Applications, but internally its paths still reference the disk image (e.g. /private/var/folders/52/zh03bcd5tx…/…/…/…/…/Contents/Resources/app.asar)

See video: https://cl.ly/2i0u131q0D1a

Additional Information

• app.moveToApplicationsFolder() works as expected when the app isn't in a disk image (and not in the Applications folder).
• I tried try / catching the invocation and logging any errors with no success. There's either no error or the application becomes unresponsive before reaching the catch branch.
• Here's the after-force-quit crash dump log: https://gist.github.com/javan/50208efe1bfa738d09605b0c980a557e

[javan]

My implementation is basically just:

if (!app.isInApplicationsFolder()) {
  const button = dialog.showMessageBox(…)
  if (button == 0) {
    app.moveToApplicationsFolder()
  }
}

[javan]

@MarshallOfSound, I see some disk image conditions in #10142. Perhaps they're not quite right?

[codebytere]

@javan unfortunately this is a problem with upstream (we ported this functionality from LetsMove) which doesn't seem to have a potential solution at present 😞

[sofianguy]

Closing this issue as this is not something we can fix, according to the comment above.