Gnome permanent notification shows wrong song name

[pabgan]

The permanent notification in the Gnome notification center that tells you the Station, current song and has playback buttons does not show correctly the name of the song.

Expected Behavior

Line should read:
Artist - Song name

Current Behavior

Line reads:
Artist - text="Song name"
See screenshot:

Steps to Reproduce

1. Open Gradio.
2. Play a random station.

Detailed Description

% lsb_release -a                                                                           
LSB Version:	:core-4.1-amd64:core-4.1-noarch
Distributor ID:	Fedora
Description:	Fedora release 28 (Twenty Eight)
Release:	28
Codename:	TwentyEight

% flatpak info de.haeckerfelix.gradio                                                      !10006
Referencia: app/de.haeckerfelix.gradio/x86_64/stable
ID: de.haeckerfelix.gradio
Arquitectura: x86_64
Rama: stable
Origen: flathub
Collection ID: org.flathub.Stable
Date: 2018-08-19 07:55:45 +0000
Subject: Use 3.28 branch of the GNOME runtime (04bce224)
Commit: 39a2ee5142c37a05277cae9d69779371e1e74937a638c4b85ffaf32cc4027a22
Parent: df959ee3cb1e6c2d8e3f7928f6d886e5d5d72489508ee46a784e64426d17ada3
Localización: /var/lib/flatpak/app/de.haeckerfelix.gradio/x86_64/stable/39a2ee5142c37a05277cae9d69779371e1e74937a638c4b85ffaf32cc4027a22
Tamaño de la instalación: 1,4 MB
Runtime: org.gnome.Platform/x86_64/3.28
Sdk: org.gnome.Sdk/x86_64/3.28

[haecker-felix]

duplicate of #315