**Steps to replicate the issue** (include links if applicable):
* For instance, go to https://de.wikivoyage.org/wiki/Karnak/Freilichtmuseum . It seems that the problem occurs mostly in breadcrumb trails, i.e. only on Wikivoyage pages.
* Also on en-voy: https://en.wikivoyage.org/wiki/Cairo/Downtown
**What happens?**:
* Since a few days, in some links of the breadcrumb trail <span>-Tags are visible that should not happen. By any process, maybe tidying (HTML5 parser), HTML-tag angle brackets and quots are converted to SGML entities like:
```
<a href="/wiki/%C3%84gypten" title="Ägypten"><span class="mw-page-title-main">Ägypten</span></a>
```
**What should have happened instead?**:
* HTML tags should not be converted to SGML entities
**Software version** (skip for WMF-hosted wikis like Wikipedia):
**Other information** (browser name/version, screenshots, etc.):
(Copied from T316108)
{F35487471}
This must be related to the change introduced by T306440 (hence subscribing @matmarex and @ppelberg). However, I think the blame lies with the GeoCrumbs extenison's handling of page titles (it takes them from $parserOutput), so it should be fixed there. Additionally, I don't think GeoCrumbs does any good on the Wikimedia Incubator, because it basically just duplicates the subpage info that is already present on pages. Looking at [[ https://github.com/wikimedia/mediawiki-extensions-GeoCrumbs/blob/master/includes/Hooks.php | its code ]], it seems that subpages (which all content pages on the Wikimedia Incubator are, due to the prefix/test wiki system) take precedence over the `{{#isin:}}`magic word.