Clearing more cells to ensure a clean slate before the next pathfinding starts

Author: Bart Roossien

GeneralsMD/Code/GameEngine/Source/GameLogic/AI/AIPathfind.cpp

@@ -1297,6 +1297,14 @@ Bool PathfindCell::allocateInfo( const ICoord2D &pos )
  */
 void PathfindCell::releaseInfo( void ) 
 { 
+    @TheSuperHackers @info 04/06/2025 Skyaero/Mauller
+	// Parent cells don't always gets cleared if one of the conditions below is true.
+	// But they should be cleared anyway, otherwise future path
+	// generation could yield an invalid path, causing a application crash.
+	if (m_info && m_info->m_pathParent) {
+		m_info->m_pathParent = NULL;
+	}
+
 	if (m_type==PathfindCell::CELL_OBSTACLE) {
 		return;
 	}
@@ -7525,6 +7533,7 @@ Path *Pathfinder::internal_findHierarchicalPath( Bool isHuman, const LocomotorSu
 	PathfindLayerEnum layer = TheTerrainLogic->getLayerForDestination(from);
 	PathfindCell *parentCell = getClippedCell( layer,&clipFrom );
 	if (parentCell == NULL) {
+		goalCell->releaseInfo();
 		return NULL;
 	}
 	if (parentCell!=goalCell) {
@@ -8812,6 +8821,7 @@ Path *Pathfinder::findClosestPath( Object *obj, const LocomotorSet& locomotorSet
 	if (parentCell!=goalCell) {
 		worldToCell(&clipFrom, &pos2d);
 		if (!parentCell->allocateInfo(pos2d)) {
+			goalCell->releaseInfo();
 			return NULL;
 		}
 	}