engine: client: correctly support ENGINE_COMPUTE_STUDIO_LERP feature flag without STUDIO_INTERPOLATION_FIX enabled

engine/client/cl_frame.c

@@ -1238,14 +1238,24 @@ void CL_LinkPacketEntities( frame_t *frame )
 						VectorCopy( ent->curstate.origin, ent->latched.prevorigin );
 						VectorCopy( ent->curstate.angles, ent->latched.prevangles );
 
+						if( !FBitSet( host.features, ENGINE_COMPUTE_STUDIO_LERP ))
+						{
 							// disable step interpolation in client.dll
 							ent->curstate.movetype = MOVETYPE_NONE;
 						}
+					}
+					else
+					{
+						if( FBitSet( host.features, ENGINE_COMPUTE_STUDIO_LERP ))
+						{
+							interpolate = true;
+						}
 						else
 						{
 							// restore step interpolation in client.dll
 							ent->curstate.movetype = MOVETYPE_STEP;
 						}
+					}
 #endif
 				}
 			}