tagsearch findn't articles with tag
Article The Federation - eine nachhaltige Kommunikationsinfrastruktur der Wandelbewegung contains a #WiRnetwork tag. But the tagsearch https://hub.libranet.de/search?tag=WiRnetwork findn't this article.
This is a bug, that is fixed in Hubzilla dev. S. also comment by MacGirvin here tagsearch findn't articles with tag and here.