Last item of multivalue fields are not renders.

Problem/Motivation

I am finding that the last field item of a multivalue field is not rendering when the "nomarkup" setting is turned on for the field.

I am using the module with a multivalue paragraph/entity reference revisions field but I think the issue will happen with other multivalue field types.

Steps to reproduce

• Add a multi-value field to a node.
• Enable the "nomarkup" field formatter setting for the field.
• Create a new node and add 2 or more field items.
• View page, should not see the last item rendering.
• Turn off the "nomarkup" field formatter setting for the field.
• View the page again, should see all field items.

Proposed resolution

Looking at the field--nomarkup.html.twig template the issue seems to be line 8:

{{- items[items|length].content -}}

I think it needs to be:

{{- items[items|length - 1].content -}}

to access the last element.

Remaining tasks

1. Confirm bug.
2. Create patch.

User interface changes

N/A

API changes

N/A

Data model changes

N/A