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diff --git a/test-suite/bugs/closed/4250.v b/test-suite/bugs/closed/4250.v
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+Require Import FunInd.
+Require  Vector.
+Generalizable All Variables.
+
+Definition f `{n:nat , u:Vector.t A n} := n.
+
+Function f2 {A:Type} {n:nat} {v:Vector.t A n} : nat := n.
+
+(* fails with "The reference A was not found in the current environment." *)
+Function f3 `{n:nat , u:Vector.t A n} := u.
+Check R_f3_complete.