Around the time I updated to 6.4.0, KOrganizer no longer does anything when right clicking on one of the results of a Find and clicking Show. In the past, clicking Show would bring up a screen with details and I would frequently use this to click Show in context or something similar that would quickly take me to the date of the event so that I may easily see what else happened that day.
While I always found this functionality a bit confusing, it was helpful to quickly go to the date of the event and I also used this functionality to allow me to copy the event. I guess this Show feature is not really needed if going to the date or copying the event was possible directly from the right click menu.