Indeed it looks like everything between parentheses has been stripped as if it were text.
rEPOPb587fcda2055: render.article: Remove text inside brackets along with the brackets

But if it isn't MediaWiki-extensions-Graph's fault, it's almost certainly TextExtracts'.

Only a problem if you don't have graphoid running right ?

In T105924#1458662, @TheDJ wrote:

Only a problem if you don't have graphoid running right ?

That bit of JS is actually the output for the graphoid-generated fallback image. :D Graph uses inline document.write and a noscript element to insert an img element if necessary (but not always when necessary). It's kind of scary.

In T105924#1458742, @brion wrote:

In T105924#1458662, @TheDJ wrote:

Only a problem if you don't have graphoid running right ?

That bit of JS is actually the output for the graphoid-generated fallback image. :D Graph uses inline document.write and a noscript element [..] kind of scary.

See also T107976.

Steps to repro:

• set up a wiki, install graph & popups
• create a page that has a graph right at the beginning of the page
• link to that page
• hover cursor over the link

Thanks @brion is this all graphs generated or just with specific parameters. (Note to future bug fixer you will have to dig through https://www.mediawiki.org/wiki/Extension:Graph to see how to generate graph)

Should be any graph, as it's the JS preamble with the data trigger that's showing up. My test wiki at the time had a copy of one of the samples, I think the Adams chart: https://www.mediawiki.org/wiki/Extension:Graph/Demo#Graph_data_from_a_URL

Does this happen if RESTBase is used? If we switch to HTML previews this would go away.