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-rw-r--r--test-suite/bugs/closed/bug_5752.v8
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diff --git a/test-suite/bugs/closed/bug_5752.v b/test-suite/bugs/closed/bug_5752.v
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+Class C (A : Type) := c : A.
+
+Hint Mode C ! : typeclass_instances.
+
+Goal forall f : (forall A, C A -> C (list A)), True.
+intros.
+ Check c. (* Loops if modes are ignored. *)
+Abort.