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-rw-r--r--src/map/amap/amapInt.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/map/amap/amapInt.h b/src/map/amap/amapInt.h
index b28ea7e7..82ca49dd 100644
--- a/src/map/amap/amapInt.h
+++ b/src/map/amap/amapInt.h
@@ -256,7 +256,7 @@ static inline int Amap_ObjLevel( Amap_Obj_t * pObj )
static inline void Amap_ObjSetLevel( Amap_Obj_t * pObj, int Level ) { pObj->Level = Level; }
static inline void Amap_ObjSetCopy( Amap_Obj_t * pObj, void * pCopy ) { pObj->pData = pCopy; }
static inline Amap_Obj_t * Amap_ObjChoice( Amap_Man_t * p, Amap_Obj_t * pObj ) { return pObj->Equiv? Amap_ManObj(p, pObj->Equiv) : NULL; }
-static inline void Amap_ObjSetChoice( Amap_Obj_t * pObj, Amap_Obj_t * pEqu){ assert(pObj->Equiv==0); pObj->Equiv = pEqu->Id; }
+static inline void Amap_ObjSetChoice( Amap_Obj_t * pObj, Amap_Obj_t * pEqu){ assert(pObj->Equiv==0); if (pObj->Id != pEqu->Id) pObj->Equiv = pEqu->Id; }
static inline int Amap_ObjPhaseReal( Amap_Obj_t * pObj ) { return Amap_Regular(pObj)->fPhase ^ Amap_IsComplement(pObj); }
static inline int Amap_ObjRefsTotal( Amap_Obj_t * pObj ) { return pObj->nFouts[0] + pObj->nFouts[1]; }