Possible regression: missing version and/or revision in meta.json

[wdscxsj]

With v0.7.0, I notice some docsets have lost the version and/or revision fields in their meta.json after updating the docsets. For example, the LaTeX docset's meta.json becomes:

{
    "name": "LaTeX",
    "title": "LaTeX"
}

The MySQL docset's meta.json becomes:

{
    "name": "MySQL",
    "title": "MySQL",
    "version": "8.0"
}

Other affected docsets on my machine include Java SE20, PHP, SVG, and WordPress. They are always marked as "Update available". Neither updating nor deletion plus reinstallation avoids this issue. Perhaps related to #1532?

[trollixx]

And this is why I should write tests :(

[andrm]

It would be helpful if this would be released.

[wdscxsj]

My current workaround is to keep two copies of Zeal: v0.6.1 for updating docsets, and v0.7.0 as the viewer. The disk space cost for v0.6.1 is less than 100 MB.