Change #1104974 had a related patch set uploaded (by Awight; author: Awight):

[mediawiki/extensions/Cite@master] [WIP] Stop styling languages that have no counter style

https://gerrit.wikimedia.org/r/1104974

Global search for "mw-Ref" CSS rules that might apply to Parsoid footnote markers: https://global-search.toolforge.org/?q=%22mw-Ref%22&namespaces=8&title=.*css (111 results)

There are no matches for "mw-reflink-text" which means that all CSS relies on Cite styling to hide the fallback text.

Unfortunately, this probably means that we would cause many duplicated footnote markers without a more sophisticated migration than the current WIP patch.

Grabbing a typical example of these rules, eswiki has:

.mw-ref > a[data-mw-group=lower-alpha]::after {
    content: counter( mw-Ref, lower-alpha );
}

and copying the custom sequence message https://es.wikipedia.org/w/index.php?title=MediaWiki:Cite_link_label_group-lower-alpha

The result is indeed a doubled footnote marker: [a]a (Spanish Wikipedia suppresses square brackets so they aren't included in the CSS rule.)

Looking at actual eswiki and how we might safely change the rule, the following separate rules are applying to lower-alpha footnote markers in parsoid read mode, listed here in decreasing order of precedence:

• "[lower-alpha 4]" from .mw-ref > a[style~="mw-Ref"][data-mw-group]::after { content: '[' attr(data-mw-group) ' ' counter(mw-Ref,var(--cite-counter-style)) ']'; }
• "d" from .mw-ref > a[data-mw-group="lower-alpha"]::after { content: counter(mw-Ref,lower-alpha); }
• "lower-alpha 4" from .mw-ref > a[data-mw-group]::after { content: attr(data-mw-group) ' ' counter(mw-Ref,decimal); }
• "[4]" from .mw-ref > a[style~="mw-Ref"]::after { content: '[' counter(mw-Ref,var(--cite-counter-style)) ']'; }

Finally, the fallback text is already more correct than what is actually rendered, "[d]".

In this case, the ideal would be to immediately prevent any CSS rules on mw-Ref, or add an additional rule which takes higher precedence and hides the ::after while showing the fallback?

In this case, the ideal would be to immediately prevent any CSS rules on mw-Ref, or add an additional rule which takes higher precedence and hides the ::after while showing the fallback?

I like that idea 😁.

.mw-ref > a::after {
	content: none !important;
}

We learned from @ssastry that it's possible to preview the effect of our CSS changes by applying them as a file in the visual diffs tool, see for example https://gerrit.wikimedia.org/r/plugins/gitiles/integration/visualdiff/+/refs/heads/master/configs/parsoid_vs_core/parsoid.custom_styles.yaml

The specific rules we'll add are:

.mw-ref > a[style~='mw-Ref']::after { content: none !important; }
.mw-ref > a[style~='mw-Ref'] span.mw-reflink-text { display: revert; }

Change #1109034 had a related patch set uploaded (by Awight; author: Awight):

[integration/visualdiff@master] [DNM] Switch to explicit numbering of footnote markers

https://gerrit.wikimedia.org/r/1109034

Change #1111215 had a related patch set uploaded (by Awight; author: Awight):

[mediawiki/extensions/Cite@wmf/1.44.0-wmf.12] Switch to explicit numbering for Parsoid footnote markers

https://gerrit.wikimedia.org/r/1111215

Waiting for a scheduled backport deployment on 20 January so we can better monitor.

Change #1104974 merged by jenkins-bot:

[mediawiki/extensions/Cite@master] Switch to explicit numbering for Parsoid footnote markers

https://gerrit.wikimedia.org/r/1104974

Change #1111215 merged by jenkins-bot:

[mediawiki/extensions/Cite@wmf/1.44.0-wmf.12] Switch to explicit numbering for Parsoid footnote markers

https://gerrit.wikimedia.org/r/1111215

Mentioned in SAL (#wikimedia-operations) [2025-01-20T08:31:32Z] <awight@deploy2002> Started scap sync-world: Backport for [[gerrit:1111215|Switch to explicit numbering for Parsoid footnote markers (T382310)]]

Mentioned in SAL (#wikimedia-operations) [2025-01-20T08:44:31Z] <awight@deploy2002> awight: Backport for [[gerrit:1111215|Switch to explicit numbering for Parsoid footnote markers (T382310)]] synced to the testservers (https://wikitech.wikimedia.org/wiki/Mwdebug)

Mentioned in SAL (#wikimedia-operations) [2025-01-20T08:55:11Z] <awight@deploy2002> Finished scap sync-world: Backport for [[gerrit:1111215|Switch to explicit numbering for Parsoid footnote markers (T382310)]] (duration: 23m 38s)