bugfix: Builders now resume their task after having been disabled

[Stubbjax]

This change fixes an issue where builders do not resume a construction or repair task after being disabled.

Before

The dozer is left idle after being disabled

NO_RESUME.mp4

After

The dozer resumes construction after being disabled

YES_RESUME.mp4

[xezon]

Do we definitely consider this a bug? On first sight it looks like a design change. It was an inconvenience to the player.

[Stubbjax]

Do we definitely consider this a bug? On first sight it looks like a design change. It was an inconvenience to the player.

I definitely do, though I'm happy to mark it as design if desired. I think there is merit to categorising such a change as a bug in which the outcome / behaviour is unexpected or inconsistent. Units currently resume all other tasks after disabling, such as movement, garrison, collection, attacking, etc., so it is reasonable to expect the same of build and repair commands.

I've seen this situation occur many times and the victim is always confused when they eventually discover or are told that their builder has ceased construction. I can't think of any other cases in the game where a player's unit will cease execution / completion of a given command unless the target of that command's state changes, e.g. the target dies, is captured, is garrisoned, is repaired, is shrouded, etc. It is counterintuitive that ECMs and other disabling damage types have this effect on just build and repair commands.