When a request is grouped with another request or a request group, it only makes sense that the Desired completion date for all these grouped requests is the same. Until now, it was only possible to edit this field in the separate grouped requests, so not in the copy of the original request that is now the request group. Consequently, the various grouped requests could have different dates for this field.
It is now only possibly to edit the Desired completion date of grouped requests in the request group itself. Whenever this field is set or modified, the Desired completion date field of all the grouped requests is automatically updated, as well.