Serratus MSA does not link with imported tree

Serratus exports alignments and trees for various loci, these typically have taxon names after an identifier like "u12334|Taxon name" - however jalview splits off the ' name' bit and adds it to the description. See e.g. https://serratus.io/trees

importing an alignment and then adding its corresponding tree results in leaf nodes with ' ' in their taxon name left unassociated. This shouldn't really happen because 'u12334|Taxon' should be enough to unambiguously match up leaf with sequence - but Jalview doesn't seem to be splitting leaf names up in the same way as it does sequence IDs.