This is a serious issue, please fix as soon as possible.

Does anybody know whether this is a regression? How much is this a privacy (?) concern?

It was discussed at the talk page here: https://de.wikipedia.org/wiki/Vorlage_Diskussion:Hauptseite_Aktuelles#Funktioniert_die_Vorlage_korrekt.3F

I don't know if this had been worked before...

This issue is still open and an extensive limitation of the FlaggedRevs. Is this going to be fixed in the foreseeable future?

Hi everyone. This bug negatively affects the German main page and is therefore to be considered important. Could please anyone have a look into this and at least rate the amount of necessary work to fix it?

This comes up in the German Wikipedia every now and then, currently again. At least a reaction would be fantastic.

Furthermore, it radically contradicts the principle of FlaggedRevs. A bug like this should have a much bigger priority in being fixed than it has currently.

Yes, this is simply a malfunction in the core of the flagged revs. I put the priority up to "Unbreak Now!" for this reason.

In T126263#2505470, @Jdforrester-WMF wrote:

In dewiki's specific case highlighted here, I would recommend protecting each of the templates used on the Main Page so that only sysops can edit them, which is how MediaWiki is designed to work.

This isn't a solution, it's an unwanted regression of the mainpage workflow at dewiki. I don't understand how this extensions could be designed without a proper implementation for templates, because it really disrupts any usage of this extension. I don't understand how anyone could design this software in that way.

That's why I consider this as a bug, not as a feature request.

In T126263#2505470, @Jdforrester-WMF wrote:

Sorry, this is a fundamental limitation of FlaggedRevs (and it's one of many reasons why I discourage communities from using the software). It has been this way since the beginning, and I imagine it would take a great deal of work (many months) to fix.

I would encourage wikis with FlaggedRevs installed to consider carefully this limitation (and the several others) in how they use the FlaggedRevs feature, and check the impact of their configurations. In dewiki's specific case highlighted here, I would recommend protecting each of the templates used on the Main Page so that only sysops can edit them, which is how MediaWiki is designed to work.

FlaggedRevs is not under active development by the Wikimedia Foundation, only maintenance. It would be possible for someone to come up with changes to provide this feature, but there would be a huge learning curve. I'd be happy to give (e.g.) Wikimedia Germany pointers to get started if they wanted to attempt to take this on.

@Jdforrester-WMF I'm confused. Isn't this code written to actually prevent this malfunction?