A promisified method expects the callback parameter to be either
a function (in which case the original method is called normally)
or omitted altogether (in which case a Promise is returned).
The call to open application details in Software does neither and
passes null instead, which will result in a warning (because no
function argument means a promise will be used, but not omitting
the parameter means we end up with too many arguments).
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2551
1666fa195d