Description:
A vandalized description from Wikidata is displayed via the PCS Summary endpoint, and although the vandalism has since been reverted on Wikidata, the incorrect content remains cached. The issue is visible at:
https://de.wikipedia.org/api/rest_v1/page/summary/Alien

Since the Wikipedia page itself was not edited since, the Summary endpoint did not invalidate its cache, and thus continues to serve the outdated, vandalized content.

Steps to reproduce:

1. Visit https://de.wikipedia.org/api/rest_v1/page/summary/Alien
2. Check the description field, vandalism is still visible

Expected result:
The SummaryAPI should reflect the current, reverted description.

Actual result:
The Summary endpoint still serves a cached, vandalized version of the Wikidata description.