Consider not making "out" unique in db?

[jmigual]

Making "out" unique is useful because there is no repetition, however when using the CHECK_IF_ALREADY_DONE flag, some of the previous combinations get lost when a new one is found. If we use the CHECK_IF_ALREADY_DONE flag we want all the different recipes to reach an element in order to reduce the number of requests (which is the search limiting factor).

[admin-else]

This would reduce the number of request but would introduce some new problems like which recipie should you choose when using howtoget.py.

[jmigual]

For howtoget.py you should choose the recipe with the smallest ID. As recipes are introduced in discovery order, the smallest ID is the oldest known recipe.