message: fix wront checksum call;
diff: @@ -157,12 +157,16 @@ function downloadVersionJson(version: VersionMeta, minecraft: MinecraftLocation)
  const json = folder.getVersionJson(version.id);
  await context.execute("ensureVersionRoot", () => ensureDir(folder.getVersionRoot(version.id)));
  + if (await exists(json)) {
  const actualSha1 = await computeChecksum(json, "sha1");
  const expectSha1 = version.url.split("/")[5];
  -
  - if (!await exists(json) || expectSha1 !== actualSha1) {
  + if (expectSha1 !== actualSha1) {
  await context.execute("downloadJson", createDownloadWork(version.url, json));
  }
  + } else {
  + await context.execute("downloadJson", createDownloadWork(version.url, json));
  + }
  +
  return context.execute("resolveJson", () => Version.parse(minecraft, version.id));
  };
  }
  