public void selectPersistableUri(@NonNull final PersistableUri persistedDocUri) {
        selectFilesInternal(persistedDocUri.getMimeType(), persistedDocUri.getUri(), SelectAction.SELECT_FILE_PERSISTED, persistedDocUri);
    }
Asks user to select a new location for a persisted uri (used e.g. for Track file). Permission is persisted as well.
if a callback for action {@link SelectAction#SELECT_FILE_PERSISTED} is registered, it will be called after selection has finished
main/src/main/java/cgeo/geocaching/storage/ContentStorageActivityHelper.java