We are interested in including the date that a particular field was last modified in a Display for Basic Search results. (Similar to how we can manually check modification dates for individual fields via the Log for a given record — but we'd like to be able to check many records at once.) This would be useful for answering questions like: when were the access settings for each Object in our database last changed?
Perhaps this is just not possible on the field/bundle level?
It does work on the record level: a Generic Bundle with the Display format set to ^ca_objects.lastModified shows the date of the last time an Object record was modified.
But a Generic Bundle with the Display format set to ^ca_objects.access.lastModified or ^ca_objects.customBundle.lastModified does not show the date of the last time that bundle was modified.
(Interestingly, what ^ca_objects.customBundle.lastModified displays is the date of the last time that metadata element was modified, rather than the date of the last time the content of that metadata element was modified.)