Hi Karl, we found out, that the affected metadate comes from a lookup field, that is computed from attributes of the containing list. Such fields do not change the modified date.
We could re-index all list items, when the list itself is modified (by carrying down the modified date of the list for example). But this would probably lead to too many unecessary version changes for other lists. I will check, if there are possibilities to detect lookupfields with the API. Regards, Markus
