Bug: IsInCombat() returns true persistently even in peaceful situations

[winteryu21]

Observed Behavior
Some pawns have IsInCombat() = true (causing [IN DANGER] tag and aggressive dialogue) despite being in a clearly peaceful situation:

• No hostiles on the map
• Combat ended a long time ago
• Persists even after save/reload
• Pawn is not drafted
• Pawn is healthy (no injuries, not downed)
• Occurs regardless of current job (e.g., wandering, socializing)
• Only affects pawns who previously participated in combat

Does not occur consistently; exact trigger is unknown

Expected Behavior
IsInCombat() should return false when there are no nearby hostiles and the pawn is not actively engaged in combat.

Suspected Cause
Looking at PawnUtil.IsInCombat():

public static bool IsInCombat(this Pawn pawn)
{
    if (pawn == null) return false;
    if (pawn.mindState.enemyTarget != null) return true;  // ← Suspect
    if (pawn.stances?.curStance is Stance_Busy busy && busy.verb != null) return true;
    
    Pawn hostilePawn = pawn.GetHostilePawnNearBy();
    return hostilePawn != null && pawn.Position.DistanceTo(hostilePawn.Position) <= 20f;
}

The first condition (mindState.enemyTarget != null) may be returning true due to stale data from a previous combat encounter. However, this has not been debugged in-game, so the exact cause is unconfirmed.

[SaltGin]

This is probably also related to the prolonged 'prisoner thinks they're in danger' bug fixed in 8a0e30a, which solution was more of a detour around one code path rather than fixing this. Worth checking. Will see what I can do later.

[Alchuang22-dev]

In some cases prisoners would regard other prisoners with a different faction as hostile. The bug might be related to d242d68.

[winteryu21]

Additional Findings

• Traveling to a different map via Gravship did not resolve the state.
• The state was cleared only after summoning a mechanoid threat via the antenna and finishing the combat.

[winteryu21]

It seems the issue persists even after returning to the home map following combat. The pawn still treats it as a combat situation after returning from fighting in an underground cave or completing a quest on another map.

Another notable observation is that pawns in this state never initiate concurrent dialogue. They respond calmly/normally when other pawns start a conversation, but they never take the initiative to start one themselves. However, they do still perform monologues.