Multiselect widget and the date module's time widget can't be edited

Editable fields does not appear to be compatible with the multiselect widget (see http://drupal.org/project/multiselect) or the date module's (see http://drupal.org/project/date) time field, when using the "Pop up calendar" widget. As soon as you click inside these widgets to make a change, the throbber starts to twirl right away and it's impossible to make an update.

With the multiselect widget, when you select an item on the left, the throbber starts going. When it stops, the item on the left is no longer selected. If you are very quick, you can move the item on the left to the item on the right before the throbber stops, but once it does stop, the addition is reversed.

With the time field, it simply becomes to change the time at all.

Is there any way to fix this?