code for #1632

[davidcarlisle]

• Ready to merge

Checklist of required changes before merge will be approved

• Test file(s) added
• Version and date string updated in changed source files
• Relevant \changes entries in source included
• Relevant changes.txt updated
• Rollback provided (if necessary)?
• ltnewsX.tex (and/or latexchanges.tex) updated

I haven't added rollback \c@* is a new feature so only rollback would be to undefined, and \stepcounter already has recent rollback for pre-socket versions

see #1632 for the enhancement

[muzimuzhi]

One typo correction, two styling suggestions, and a question on usages like \refstepcounter{*ctr}.

[u-fischer]

a few typos. And we probably should check if some packages set @currentcounter and so perhaps need a guard too.

[FrankMittelbach]

a few typos. And we probably should check if some packages set @currentcounter and so perhaps need a guard too.

As far as I can see, the only files that set \@currentcounterto something like #1 and not to an explicit string like "postnote" are our own, so I think we should be okay

[FrankMittelbach]

approved with a minor comment