Instantiate extension preferences with proper datastore earlier

app/src/main/java/eu/kanade/tachiyomi/data/preference/EmptyPreferenceDataStore.kt

@@ -40,7 +40,7 @@ class EmptyPreferenceDataStore : PreferenceDataStore() {
     }
 
     override fun getStringSet(key: String?, defValues: Set<String>?): Set<String>? {
-        return emptySet()
+        return null
     }
 
     override fun putStringSet(key: String?, values: Set<String>?) {

app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/details/SourcePreferencesController.kt

@@ -21,7 +21,6 @@ import androidx.preference.PreferenceManager
 import androidx.preference.PreferenceScreen
 import androidx.recyclerview.widget.LinearLayoutManager
 import eu.kanade.tachiyomi.R
-import eu.kanade.tachiyomi.data.preference.EmptyPreferenceDataStore
 import eu.kanade.tachiyomi.data.preference.SharedPreferencesDataStore
 import eu.kanade.tachiyomi.databinding.SourcePreferencesControllerBinding
 import eu.kanade.tachiyomi.source.ConfigurableSource
@@ -66,7 +65,10 @@ class SourcePreferencesController(bundle: Bundle? = null) :
 
         val themedContext by lazy { getPreferenceThemeContext() }
         val manager = PreferenceManager(themedContext)
-        manager.preferenceDataStore = EmptyPreferenceDataStore()
+        val dataStore = SharedPreferencesDataStore(
+            context.getSharedPreferences(source.getPreferenceKey(), Context.MODE_PRIVATE)
+        )
+        manager.preferenceDataStore = dataStore
         manager.onDisplayPreferenceDialogListener = this
         val screen = manager.createPreferenceScreen(themedContext)
         preferenceScreen = screen
@@ -101,10 +103,6 @@ class SourcePreferencesController(bundle: Bundle? = null) :
     private fun addPreferencesForSource(screen: PreferenceScreen, source: Source) {
         val context = screen.context
 
-        val dataStore = SharedPreferencesDataStore(
-            context.getSharedPreferences(source.getPreferenceKey(), Context.MODE_PRIVATE)
-        )
-
         if (source is ConfigurableSource) {
             val newScreen = screen.preferenceManager.createPreferenceScreen(context)
             source.setupPreferenceScreen(newScreen)
@@ -113,7 +111,6 @@ class SourcePreferencesController(bundle: Bundle? = null) :
             while (newScreen.preferenceCount != 0) {
                 val pref = newScreen.getPreference(0)
                 pref.isIconSpaceReserved = false
-                pref.preferenceDataStore = dataStore
                 pref.order = Int.MAX_VALUE // reset to default order
 
                 newScreen.removePreference(pref)