For more stable links when publishing Paligo content on Fluid Topics, use the paligo:resourceTitle metadata key rather than the ft:title metadata key in pretty URL templates.
paligo:resourceTitle corresponds to the xinfo:resource-title attribute of the <section> element in Paligo. The xinfo:resource-title attribute gets its value from the name of the topic in the Paligo Content Manager, rather than the <title> value of the topic.