App crashes when rotating to landscape mode while selecting an APK file

[craslaw]

Steps to reproduce:

1. Select Verify APK File.
2. Rotate screen while viewing your downloads.
3. Tap an APK file and the app will crash.

This functionality may be desired when downloading different builds of the same APK (e.g. one for F-Droid and another released directly to GitHub). When viewing the downloads folder vertically, the file names are too long to be able to tell the APKs apart.

As a workaround, if AppVerifier is rotated to landscape mode before tapping Verify APK File and continuing to select an APK, the app does not crash.