[Nightly] Crash on Importing Database

[TobiGr]

Checklist

• I am able to reproduce the bug with the latest version.
• I made sure that there are no existing issues - open or closed - which I could contribute my information to.
• I have read the FAQ and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
• This issue contains only one bug.
• I have read and understood the contribution guidelines.

Affected version

0.24.2 (nightly 30)

Steps to reproduce the bug

1. Export db in NewPipe 0.24.1
2. Open NewPipe nightly and open a video / the video detail fragment
3. minimize player and Import db in current nightly

Expected behavior

No crash

Actual behavior

NewPipe finished the import and crashes afterwards.

Logs

java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference
 at org.schabi.newpipe.local.feed.FeedFragment.onCreate$lambda-0(FeedFragment.kt:125)
 at org.schabi.newpipe.local.feed.FeedFragment.$r8$lambda$SVZC3B9xz0HrRxuxOiEkSYdQHMY(Unknown Source:0)
 at org.schabi.newpipe.local.feed.FeedFragment$$ExternalSyntheticLambda13.onSharedPreferenceChanged(Unknown Source:2)
 at android.app.SharedPreferencesImpl$EditorImpl.notifyListeners(SharedPreferencesImpl.java:629)
 at android.app.SharedPreferencesImpl$EditorImpl.commit(SharedPreferencesImpl.java:617)
 at org.schabi.newpipe.settings.ContentSettingsManager.loadSharedPreferences(ContentSettingsManager.kt:102)
 at org.schabi.newpipe.settings.ContentSettingsFragment.lambda$importDatabase$6$org-schabi-newpipe-settings-ContentSettingsFragment(ContentSettingsFragment.java:235)
 at org.schabi.newpipe.settings.ContentSettingsFragment$$ExternalSyntheticLambda3.onClick(Unknown Source:4)
 at androidx.appcompat.app.AlertController$ButtonHandler.handleMessage(AlertController.java:167)
 at android.os.Handler.dispatchMessage(Handler.java:106)
 at ...

[Stypox]

Here's the problem...