040000 tree e01830d188b89d133ba34defba8a8cc54a61f869	does-not-substitute-no-limit
040000 tree 819410ba83b8c4a6cd527bba6f08979472577070	does-not-substitute-within-limit
040000 tree ba03a3c49523eb5fac0bc1b648062c4f79c06054	escaping
040000 tree d69531a877f2ee46660ad28780b62197f3032869	negative-integer
040000 tree ebca119c9d2d4ad9d75266bd848cb19930753928	not-an-integer
040000 tree 0286792c5ec5d5982b4569ab288eb0613fee8dda	set-to-none
040000 tree 484378ba8e2bf931c79819f6c15b58550fca3e7a	substitutes-within-limit