So my suggestion is to add some code that does not ask for assignment actions if that minion is already assigned.
This is part personal preference, part totally logical rule of thumb. However, because the rules only forbid the
effect of an assignment action if it cannot be carried out and not the cost I don't think this should be changed. The only instance I can think of where it matters is if
Southron Wanderer is bearing
Seasoned Leader: he should be able to exert even after the Free Peoples allows him to be assigned to the Ring-bearer (and the FP should have the option to add twilight, even if there are even fewer instances when they would benefit from it). Actually, that might not be a half bad idea...
The following should be fixed upon the next reset:
Glorfindel, Revealed in Wrath can no longer make a Nazgul -X if he is already exhausted
Ulaire Nertea, Dark Horseman no longer affects allies
Narya, Ring of Fire properly removes culture tokens
East Wall of Rohan,
Gate of Mordor, and
Primitive Brand have the correct rarity
Sauron's Defenses and
Orc Butchery properly check the Free People's dead pile
Mordor Assassin no longer crashes game if used after the Ring-bearer is overwhelmed
Jarnsmid, Merchant from Dale no longer discounts Shadow items
Pelennor Prairie properly attributes the discarding to the Free Peoples instead of its owner
Overwhelm prevention effects (e.g.,
Bounder) have the correct helper text