Refine useLocaleManager with intent check for locales

This fixes https://github.com/topjohnwu/Magisk/issues/9628.

app/core/src/main/java/com/topjohnwu/magisk/core/utils/LocaleSetting.kt

@@ -4,9 +4,12 @@ import android.annotation.SuppressLint
 import android.app.LocaleConfig
 import android.app.LocaleManager
 import android.content.ContextWrapper
+import android.content.Intent
 import android.content.res.Resources
+import android.net.Uri
 import android.os.Build
 import android.os.LocaleList
+import android.provider.Settings
 import androidx.annotation.RequiresApi
 import com.topjohnwu.magisk.core.AppApkPath
 import com.topjohnwu.magisk.core.AppContext
@@ -165,8 +168,9 @@ interface LocaleSetting {
         }
 
         val useLocaleManager get() =
-            if (isRunningAsStub) Build.VERSION.SDK_INT >= 34
-            else Build.VERSION.SDK_INT >= 33
+            (if (isRunningAsStub) Build.VERSION.SDK_INT >= 34 else Build.VERSION.SDK_INT >= 33) &&
+                Intent(Settings.ACTION_APP_LOCALE_SETTINGS, Uri.fromParts("package", AppContext.packageName, null))
+                    .resolveActivity(AppContext.packageManager) != null
 
         val instance: LocaleSetting by lazy {
             // Initialize available locale list

scripts/addon.d.sh

@@ -137,9 +137,7 @@ case "$1" in
     # Back up PREINITDEVICE from existing partition before OTA on A-only devices
     if ! $backuptool_ab; then
       initialize
-      # Suppress ui_print for this stage
-      ui_print() { return; }
-      get_flags
+      RECOVERYMODE=false
       find_boot_image
       $MAGISKBIN/magiskboot unpack "$BOOTIMAGE"
       $MAGISKBIN/magiskboot cpio ramdisk.cpio "extract .backup/.magisk config.orig"