Steps to reproduce:

1. Launch Hob
2. Select a machine and base image
3. Click 'Edit image'
4. Select the "All recipes" tab
5. Click on the checkbox of a recipe that is not included

Outcome: the recipe is repositioned within the table upon selection, which is quite disconcerting. If you click on the "Recipe name" table heading to sort recipes by name, and then include another recipe, the repositioning does not happen.

Expected outcome: selected items should remain in the same position upon selection. I suspect the table is being reordered on the fly upon selection, which means the problem is related to the fact that there is no default sorting criteria applied to those tables (see bug 2346).