FixReport

What fixIssues did. The hashes are the canonical ones, keyed as canonical:guitar:expert and canonical:song.

Properties

Property	Modifier	Type	Description
`fixed`	`readonly`	readonly { `code`: `IssueCode`; `description`: `string`; `file`: `string`; }[]	Each fix made: the code of the issue it fixes, the file it changes, and what it does.
`hashes`	`readonly`	readonly { `after`: `string` \| `null`; `before`: `string` \| `null`; `key`: `string`; }[]	Each hash the fixes changed, with its value before and after, or `null` where the song had or has no such hash.
`renamed`	`readonly`	readonly { `from`: `string`; `to`: `string`; }[]	Files renamed. Writing the song back to its folder, remove each `from` file.
`skipped`	`readonly`	readonly { `code`: `IssueCode`; `file`: `string` \| `null`; `reason`: `string`; }[]	Each issue found that wasn’t fixed, and why.