knitr params in standalone YAML block don't work

This doesn't work:

---
title: "test"
format: html
---

---
params:
  p1: 1.0
  p2: "A"
  p3: TRUE
---

# Test 

```{r}
print(params$p1)
print(params$p2)
print(params$p3)
```

But this does work:

---
title: "test"
format: html
params:
  p1: 1.0
  p2: "A"
  p3: TRUE
---

# Test 

```{r}
print(params$p1)
print(params$p2)
print(params$p3)
```

I can confirm that the input file sent to knitr has the params block.

@cderv Is this a knitr bug?

Start with the minimal Quarto document in the issue and compare the standalone YAML block with the working front-matter form. Trace how Quarto passes metadata to knitr, then verify that parameters from the standalone block are available to the R code and that the existing working form remains unchanged.