AutoGrouper is broken for JPEG/RAW pairs

In darktable I import both JPEG and RAW into the library. (It is sometimes convenient to compare JPEGs and RAW developments that way.)

Now when I apply Auto group to a selection, the following happens:

• For the first pair of images of a group, both JPEG and RAW are included, with the first RAW being the group leader. This is expected and what I hoped would happen.
• For the following images, up to the gap in time signalling the end of the group:
  • The RAW images get added to the group
  • The JPEG images do not get added and remain group-less.

I would like to have all JPEGs and RAWs added to the group.

If I have time I might look into this myself, but that is not likely in the next few weeks. We'll see.

If you need them I can provide a sample burst of images or two.

Inizia riproducendo Auto group su una selezione contenente coppie JPEG/RAW, quindi individua il punto di ingresso di Auto group nel repository lua-scripts. Confronta il modo in cui vengono gestiti la prima coppia e le immagini successive; il lavoro è completato quando ogni JPEG e RAW del gruppo delimitato temporalmente è incluso.