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diff --git a/test-suite/bugs/closed/bug_11046.v b/test-suite/bugs/closed/bug_11046.v
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+++ b/test-suite/bugs/closed/bug_11046.v
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+From Ltac2 Require Import Ltac2.
+
+Ltac2 Type t := [..].
+Ltac2 Type t ::= [A(int)].
+
+(* t cannot be extended with two constructors with the same name *)
+Fail Ltac2 Type t ::= [A(bool)].
+Fail Ltac2 Type t ::= [B | B(bool)].
+
+(* constructors cannot be shadowed in the same module *)
+Fail Ltac2 Type s := [A].
+
+(* constructors with the same name can be defined in distinct modules *)
+Module Other.
+  Ltac2 Type t ::= [A(bool)].
+End Other.
+Module YetAnother.
+  Ltac2 Type t' := [A].
+End YetAnother.