Fluid seems to work for ContentItem but not custom parts

[fuzl-llc]

I'm trying to use the amazing Fluid functionality as part of my Orchard Core app. For testing purposes, when my app starts, I allow unsafe access just to ensure I have no security issues while I'm just trying to get template rendering working.

TemplateOptions.Default.MemberAccessStrategy = new UnsafeMemberAccessStrategy();

I create a new content item and store it in a variable "contentItem" and execute the following:

var fluidParser = new FluidParser();
var context = new TemplateContext(contentItem);
var template = fluidParser.Parse(THE_TEMPLATE_TEXT);
var result = await template.RenderAsync(context);

I can use all kinds values for the template text, such as:

template = fluidParser.Parse(@"{{ PublishedUtc | date: ""%Y"" }}");
template = fluidParser.Parse(@"{{ PublishedUtc | date: ""%m"" }}");
template = fluidParser.Parse(@"{{ PublishedUtc | date: ""%d"" }}");
template = fluidParser.Parse(@"{{ Author }}");

It let's me get the year, month, or day the content item was published as well as its author. Excellent! At this point, I thought I was golden and could access anything under Content per the docs at https://docs.orchardcore.net/en/main/reference/modules/Liquid/#content-property For example, I have a "NodePart" with a "Text" property attached to contentItem so thought I could access that Text property via the "Content" object like this:

template = fluidParser.Parse(@"{{ Content.Node.Text }}");

I also tried this out of curiosity:

template = fluidParser.Parse(@"{{ Content.NodePart.Text }}");

but both end up wtih result = ""

The "Content" object itself returns something...

template = fluidParser.Parse(@"{{ Content }}");

results in result = "System.Text.Json.Dynamic.JsonDynamicObject"

Interestingly, if I pause execution and use intellisense to look at the value, contentItem's Content property has a "Node" item under it with a Text property with the expected value I'm trying to get. And, if I just use:

template = fluidParser.Parse(@"{{ DisplayText }}");

I get the value I expect as that content item's "NodePart" has a handler that sets the content item's display text to the value of NodePart.Text.

Shouldn't I be able to use the above {{ Content.Node.Text }} template text to get NodePart.Text? It feels like I'm doing exactly what the docs say but it isn't working so it seems like a bug but maybe I'm just missing something...

Orchard Core version

2.1.6