Incorrect picon URLs for HD channels

[FredFrin]

Using this plugin with a dreambox, I managed to get picons to be correctly served, except for HD channels (at least on BBC 28.2E & german channels on 19.2E).

The problem is always the same, there is a surplus '9' attached to the third integer, in the URL:

http://<set-top box IP>:80/picon/1_0_19_22E3_80D_2_11A0000_0_0_0.png

should be

http://<set-top box IP>:80/picon/1_0_1_22E3_80D_2_11A0000_0_0_0.png

When I manually sym-linked the incorrect names to the correct names in the picon directory on the dbox, the picons were correctly displayed.

The requests do not receive the expected response & an exception is raised:

2017-12-28 22:00:02.042 Debug App: ConvertImageToLocal item 1cba767d-455d-88be-7d9f-a73efe452ae3 - image url: http://192.168.43.9:80/picon/1_0_19_22E3_80D_2_11A0000_0_0_0.png
2017-12-28 22:00:02.042 Info HttpClient: HttpClientManager GET: http://192.168.43.9:80/picon/1_0_19_22E3_80D_2_11A0000_0_0_0.png
2017-12-28 22:00:02.103 Error HttpClient: Error ProtocolError getting response from http://192.168.43.9:80/picon/1_0_19_22E3_80D_2_11A0000_0_0_0.png
        *** Error Report ***
        Version: 3.2.60.0
        Command line: /usr/lib/emby-server/bin/MediaBrowser.Server.Mono.exe -programdata /config -restartpath /usr/lib/emby-server/restart.sh
        Operating system: Unix 4.10.0.42
        64-Bit OS: True
        64-Bit Process: True
        User Interactive: False
        Mono: 4.8.1 (Stable 4.8.1.0/22a39d7 Sun Oct  1 17:55:43 UTC 2017)
        Processor count: 4
        Program data path: /config
        Application directory: /usr/lib/emby-server/bin
        System.Net.WebException: The remote server returned an error: (404) Not Found.
          at System.Net.HttpWebRequest.EndGetResponse (System.IAsyncResult asyncResult) [0x00064] in <5641e4edad4f4464ba58c620a7b8ea48>:0
          at System.Threading.Tasks.TaskFactory`1[TResult].FromAsyncCoreLogic (System.IAsyncResult iar, System.Func`2[T,TResult] endFunction, System.Action`1[T] endAction, System.Threading.Tasks.Task`1[TResult] promise, System.Boolean requiresSynchronization) [0x00014] in <dbb16e0bacdc4a0f87478e401bc29b6c>:0
        System.Net.WebException
          at System.Net.HttpWebRequest.EndGetResponse (System.IAsyncResult asyncResult) [0x00064] in <5641e4edad4f4464ba58c620a7b8ea48>:0
          at System.Threading.Tasks.TaskFactory`1[TResult].FromAsyncCoreLogic (System.IAsyncResult iar, System.Func`2[T,TResult] endFunction, System.Action`1[T] endAction, System.Threading.Tasks.Task`1[TResult] promise, System.Boolean requiresSynchronization) [0x00014] in <dbb16e0bacdc4a0f87478e401bc29b6c>:0