From 8591217a89f0b71e8175752dc55c42a5b89fccec Mon Sep 17 00:00:00 2001
From: Hugo Herbelin
Date: Thu, 16 Jul 2015 20:21:58 +0200
Subject: Fixing bug #4240 (closure_of_filter was not ensuring refinement of
 former filter after 48509b61 and 3cd718c, because filtered let-ins were not
 any longer preserved).

---
 test-suite/bugs/closed/4240.v | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 test-suite/bugs/closed/4240.v

(limited to 'test-suite')

diff --git a/test-suite/bugs/closed/4240.v b/test-suite/bugs/closed/4240.v
new file mode 100644
index 0000000000..083c59fe68
--- /dev/null
+++ b/test-suite/bugs/closed/4240.v
@@ -0,0 +1,12 @@
+(* Check that closure of filter did not restrict the former evar filter *)
+
+Lemma foo (new : nat) : False.
+evar (H1: nat).
+set (H3 := 0).
+assert (H3' := id H3).
+evar (H5: nat).
+clear H3.
+assert (H5 = new).
+unfold H5.
+unfold H1.
+exact (eq_refl new).
-- 
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