[welle-gui] regression: MOT image is not updated in some cases

[tenzap]

Between 2.1 & now, at some time there appeared a regression, probably during the MOT SLS commits done in January

Steps Play a station that provides an image having path image://sls//0//0/0000.jpg Then switch to another station which has the same image path

Result The image that is displayed, will actually be the one of the 1st station.

Expected result Should be the picture of the current playing station

BTW If I play a station whose image has a different name, image is well set.

[AlbrechtL]

Thanks for reporting!