1 files changed, 7 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/4165.v b/test-suite/bugs/closed/4165.v
new file mode 100644
index 00000000..8e0a62d3
--- /dev/null
+++ b/test-suite/bugs/closed/4165.v
@@ -0,0 +1,7 @@
+Lemma foo : True.
+Proof.
+pose (fun x : nat => (let H:=true in x)) as s.
+match eval cbv delta [s] in s with
+| context C[true] =>
+  let C':=context C[false] in pose C' as s'
+end.