[2.0.20] Undoing downgrade of Assembler 2 to Assembler 1 does not restore recipe that requires fluid ingredient

[macdjord]

1. Build an Assembler 2
2. Set the recipe to one that requires a fluid ingredient
3. Use an upgrade planner to downgrade the assembler to an Assembler 1
4. The recipe is cleared, because Assembler 1s don't support fluid ingredients
5. Undo the upgrade
6. The Assembler 2 is back, but the recipe remains blank

[boskid]

This sounds like a duplicate of 121821

[macdjord]

Not a duplicate. The problem isn't that downgrading clears the recipe - that is expected and normal when the recipe in question requires a fluid ingredient, which Assembler 1s don't support. The problem is that undoing that downgrade with Ctrl-Z did not restore the recipe once it was an Assembler 2 again.

[boskid]

Regardless of if its a duplicate or not, please provide a log file, or at least game version on which you observed the issue.

[macdjord]

Game version: 2.0.20-3

More detailed set of replication instructions:

1. Constructed a pair of Assembler 2s
2. Set first one to make red belts, the other to make blue belts
3. Using a default upgrade planner in right-click mode, marked both Assembler 2s for downgrade into Assembler 1s
4. Bots from personal roboport applied the change
5. First assembler recipe was still set to red belts, second one now blank. (This is expected and normal; Ass1 cannot make blue belts.)
6. Using Ctrl-Z, ordered the downgrade to be undone
7. Bots from personal roboport applied the change
8. First assembler recipe was still set to red belts, second one is still blank.