From ce424c975c45e3364f3682bbc123723b929deffd Mon Sep 17 00:00:00 2001
From: Ingmar Schoegl <ischoegl@lgmail.com>
Date: Sat, 2 Nov 2019 00:26:24 -0500
Subject: [PATCH] [Thermo] fix restoring of default PureFluid state

---
 interfaces/cython/cantera/composite.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/interfaces/cython/cantera/composite.py b/interfaces/cython/cantera/composite.py
index 1ac6d93e83a..04f81cfee50 100644
--- a/interfaces/cython/cantera/composite.py
+++ b/interfaces/cython/cantera/composite.py
@@ -690,8 +690,8 @@ def restore_data(self, data, labels):
                              '{}'.format(incompatible))
         if mode == '':
             # concentration specifier ('X' or 'Y') is not used
-            states = {v.replace('X','').replace('Y','')
-                      for v in states}
+            states = [s for s in states
+                      if all([v not in s for v in {'X', 'Y'}])]
 
         # determine suitable thermo properties for reconstruction
         basis = 'mass' if self.basis == 'mass' else 'mole'