From 81a15a9cb2505908182fbbc55fc73d9c549a29fd Mon Sep 17 00:00:00 2001
From: Isaac Meyer <icmeyer@mit.edu>
Date: Fri, 20 Jul 2018 08:17:26 -0500
Subject: [PATCH] Stopped loop from erroneously adding range for unresolved
 paramaters as previous range

---
 openmc/data/resonance_covariance.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/openmc/data/resonance_covariance.py b/openmc/data/resonance_covariance.py
index 2de619c008..e1089b3571 100644
--- a/openmc/data/resonance_covariance.py
+++ b/openmc/data/resonance_covariance.py
@@ -114,12 +114,13 @@ class ResonanceCovariances(Resonances):
                     file2params = resonances.ranges[j].parameters
                     erange = _FORMALISMS[formalism].from_endf(ev, file_obj,
                                                               items, file2params)
+                    ranges.append(erange)
+
                 elif unresolved_flag == 2:
-                    warn_str = 'Unresolved resonance not supported.'\
+                    warn_str = 'Unresolved resonance not supported. '\
                                'Covariance values for the unresolved region not imported.'
                     warnings.warn(warn_str)
                                  
-                ranges.append(erange)
 
         return cls(ranges)