Question about the "display" attribute of annotation

What is the expected value of `display` attribute of indented annotation?

I find the following description in the spec:

An annotated bibliography, where the annotation appears in an indented block below the reference.

<text display="indent" variable="abstract" />

My understanding is that display="indent" makes an entirely indented paragraph as specified in APA (p. 307). This also matches the description of value indent.

“indent” - block indented to the right by a standard amount. Extends to the right margin.

However display="block" is used in the current apa-annotated-bibliography.csl.

  <text variable="note" display="block"/>

It seems the attribute value doesn’t match the definition of `block`.

“block” - block stretching from margin to margin.

The following is an annotated bibliography generated by apa-annotated-bibliography.csl and MS Word. BTW it makes an extra line break after the annotation.