[2.0.22] cannot change the recipe of a fixed_quality assembler in-gui

[Quezler]

steps to reproduce:

- set fixed_quality on an assembling machine
- load the game and and select a recipe with that fixed quality
- try to press "change recipe" and notice the button doing nothing

the expected behavior is that you're allowed to select a different recipe since only the quality is set as fixed

[boskid]

Fix for this is covered by 123072.