src/vs/workbench/contrib/bulkEdit/browser/preview/bulkEditTree.ts/FileElement/isDisabled
class FileElement:	isDisabled(): boolean {
		if (this.parent instanceof CategoryElement && this.edit.type === BulkFileOperationType.TextEdit) {
			const model = this.parent.parent;
			let checked = true;
			for (const category of model.categories) {
				for (const file of category.fileOperations) {
					if (file.uri.toString() === this.edit.uri.toString()) {
						for (const edit of file.originalEdits.values()) {
							if (edit instanceof ResourceFileEdit) {
								checked = checked && model.checked.isChecked(edit);
							}
						}
					}
				}
			}
			return !checked;
		}
		return false;
	}