Written descriptions don't show up on OTU page if no character instances

[doricon]

For OTUs/Specimens in which there is a description node with a text description in the "written description" field, but no character instances applied to it (for example, like with OTUs for which we don't have applicable character instances), the written descriptions do not show up on the forms.

[julmoore926]

Written description does show up on the specimen page.

Example from Cladophlebis seymourensis OTU page:

And its exemplar specimen page:

[NoisyFlowers]

I've changed the logic to show any fields available for holotype descriptions. This is in paleobot/pbot-client@9f16934.

Merged to master and running on dev and prod.

However, that does not help with the example above. The problem there is that the OTU has no holotype specimen, only other type specimens.