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-rw-r--r--test-suite/success/bteauto.v19
1 files changed, 19 insertions, 0 deletions
diff --git a/test-suite/success/bteauto.v b/test-suite/success/bteauto.v
index 590f6e191f..bb1cf06541 100644
--- a/test-suite/success/bteauto.v
+++ b/test-suite/success/bteauto.v
@@ -46,6 +46,25 @@ Module Backtracking.
Qed.
Unset Typeclasses Debug.
+
+ Module Leivant.
+ Axiom A : Type.
+ Existing Class A.
+ Axioms a b c d e: A.
+
+ Ltac get_value H := eval cbv delta [H] in H.
+
+ Goal True.
+ Fail refine (let H := _ : A in _); let v := get_value H in idtac v; fail.
+ Admitted.
+
+ Goal exists x:A, x=a.
+ unshelve evar (t : A). all:cycle 1.
+ refine (@ex_intro _ _ t _).
+ all:cycle 1.
+ all:(typeclasses eauto + reflexivity).
+ Qed.
+ End Leivant.
End Backtracking.