When selecting one favourte the idle icon starts turning. When selecting another option before the previous selection is complete (while the icon is still rotating) there will be two favourites selected.
Imho not an important bug. This seems like a "forced" problem that is unlikely to occur often. If you reload the page, only one of the two is selected. You can always switch by selecting another favorite.
When selecting one favourte the idle icon starts turning. When selecting another option before the previous selection is complete (while the icon is still rotating) there will be two favourites selected.