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Module NonPrim.
Unset Primitive Projections.
Record c := { d : Set }.
Definition a x := d x.
Goal forall x, a x.
intro x.
Fail progress simpl. (* [progress simpl] fails correctly *)
Fail progress cbn. (* [progress cbn] fails correctly *)
admit.
Defined.
End NonPrim.
Module Prim.
Set Primitive Projections.
Record c := { d : Set }.
Definition a x := d x.
Goal forall x, a x.
intro x.
Fail progress simpl. (* [progress simpl] fails correctly *)
Fail progress cbn. (* [cbn] succeeds incorrectly, giving [d x] *)
admit.
Defined.
End Prim.
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