Code block start and end tags used in footnotes are de-indented

[saxonww]

I have a document with something similar to the following:

Some text with a footnote[^0].

[^0]: Here is some code:
    ```bash
    git log --since 2022-01-01 --pretty=format:%cs directory/ \
      | awk -F- '{print $1,$2}' \
      | sort -n \
      | uniq -c \
      | awk '{print $1}' \
      | awk '{s+=$1}END{print s/NR}'
    ```
    Some further exposition.

Running the above through pandoc, e.g. pandoc -s --from=gfm --to=html5 doc.md > doc.html does what I expect, e.g.:

Some text with a footnote^1:

----------------------------
1. Here is some code:

    git log --since 2022-01-01 --pretty=format:%cs directory/ \
      | awk -F- '{print $1,$2}' \
      | sort -n \
      | uniq -c \
      | awk '{print $1}' \
      | awk '{s+=$1}END{print s/NR}'

Some further exposition.

But if I use markflow first, the above is reformatted:

Some text with a footnote[^0].

[^0]: Here is some code:
```bash
    git log --since 2022-01-01 --pretty=format:%cs directory/ \
      | awk -F- '{print $1,$2}' \
      | sort -n \
      | uniq -c \
      | awk '{print $1}' \
      | awk '{s+=$1}END{print s/NR}'
```
    Some further exposition.

With the result being that pandoc makes the footnote Here is some code:, and drops the rest of the footnote content directly under the block of text with the footnote:

Some text with a footnote^1:

    git log --since 2022-01-01 --pretty=format:%cs directory/ \
      | awk -F- '{print $1,$2}' \
      | sort -n \
      | uniq -c \
      | awk '{print $1}' \
      | awk '{s+=$1}END{print s/NR}'

Some further exposition.
----------------------------
1. Here is some code:

Additionally, in the latter example, Some further exposition. is in 'code' font vs. the default font.

I don't think this a pandoc issue, as GitHub will do something similar when pasting in the seemingly-misflowed markdown.