perf: retain exact flow caches and compiled targets

tests/test_amesim_pnl00r_component.py

@@ -77,6 +77,34 @@ class AmesimPnl00rComponentTests(unittest.TestCase):
         self.assertGreater(pipe.mass_flow(15.3e6 + 0.1, 15.3e6), 0.0)
 
 
+    def test_pressure_drop_inversion_cache_keys_all_property_inputs(self) -> None:
+        pipe = AmesimPnl00r(
+            "pnl_1",
+            self.medium,
+            diam=0.014,
+            le=1.0,
+            rr=0.045 / 14.0,
+        )
+        pipe.port_1.h_outflow = self.medium.specific_enthalpy(300.0)
+        pipe._mass_flow_for_pressure_drop.cache_clear()
+
+        first = pipe.mass_flow(501000.0, 500000.0)
+        after_first = pipe._mass_flow_for_pressure_drop.cache_info()
+        second = pipe.mass_flow(501000.0, 500000.0)
+        after_second = pipe._mass_flow_for_pressure_drop.cache_info()
+        pipe.port_1.h_outflow = self.medium.specific_enthalpy(400.0)
+        third = pipe.mass_flow(501000.0, 500000.0)
+        after_temperature_change = pipe._mass_flow_for_pressure_drop.cache_info()
+
+        self.assertEqual(first, second)
+        self.assertEqual(after_first.misses, 1)
+        self.assertEqual(after_second.hits, after_first.hits + 1)
+        self.assertNotEqual(third, second)
+        self.assertEqual(
+            after_temperature_change.misses,
+            after_second.misses + 1,
+        )
+
     def test_friction_factor_transitions_from_laminar_to_turbulent(self) -> None:
         pipe = AmesimPnl00r("pnl_1", self.medium, rr=1e-5)