A somewhat more minimal example, tested on 1.1.18.574-21c12b6-dirty:
(let ((foo (make-array 1 :element-type 'bogus))) (declare ((vector bogus 1) foo)) (lambda (i) (svref foo i)))
A somewhat more minimal example, tested on 1.1.18. 574-21c12b6- dirty:
(let ((foo (make-array 1 :element-type 'bogus)))
(declare ((vector bogus 1) foo))
(lambda (i) (svref foo i)))