Issue when exporting series to library

*I'm submitting a ...*
- [ X] bug report
- [ ] feature request
- [ ] support request

## General infomration

### Prerequisites

* [ ] Are you running the latest version?
yes

### Description

The serie love your garden have only 1 season available on netflix, but it's the season 3. When I export it to library the plugin export it as season 1.

### Steps to Reproduce
Search for love your garden and export it to library

## Context (Environment)

### Installation

* [ ] I installed the plugin via zip from the Releases page
* [ ] I´m using the Netflix Repo
* [ X] I´m using a different source (Please tell which)
installed latest master zip

### Operating System

* [ X] Linux (x86/x64)
* [ ] OSX (x86/x64)
* [ ] Windows (x86/x64)
* [ ] Linux (ARM)
* [ ] Android

#### Additional informatin on the environment
Manjaro linux and kodi 18 latest git master

Reproduce the export by searching for Love Your Garden in Kodi on Linux, then follow the plugin's series-to-library export path. Done means a series with only season 3 available is exported with season 3 rather than being recorded as season 1.

Written by the indexing model from the issue text.