When editing a rule (e.g., adding a description) and closing the window, the new rule data is not shown in the left-side window.
You have to select again the link in the bigswitch, which triggers an update of the left-window. At this point, the changes you made in the link properties are shown.
So, it looks like when the object properties are modified, pressing the ok button does not trigger any change in the left-side window.
When editing a rule (e.g., adding a description) and closing the window, the new rule data is not shown in the left-side window. You have to select again the link in the bigswitch, which triggers an update of the left-window. At this point, the changes you made in the link properties are shown.
So, it looks like when the object properties are modified, pressing the ok button does not trigger any change in the left-side window.