Add enable_private_space_features flag check for Private Space implementation

Bug: 326060689
Test: Manual
Change-Id: I82105714e74789394a3d46b852aaa3e7b93e5877

src/com/android/settings/applications/credentials/DefaultCombinedPickerPrivate.java

@@ -32,6 +32,8 @@ public class DefaultCombinedPickerPrivate extends DefaultCombinedPicker {
 
     /** Returns whether the user is handled by this fragment. */
     public static boolean isUserHandledByFragment(UserManager userManager) {
-        return android.os.Flags.allowPrivateProfile() && userManager.isPrivateProfile();
+        return android.os.Flags.allowPrivateProfile()
+                && android.multiuser.Flags.enablePrivateSpaceFeatures()
+                && userManager.isPrivateProfile();
     }
 }