Footnote definition disappears if footnote is in a table nested in an admonition

[fabcor-maxiv]

If a footnote is in a table which itself is nested in an admonition, mdformat (with mdformat-footnote extension) removes the footnote definition.

Before mdformat:

# Document

| Color |
| ------ |
| R [^1] |
| G [^2] |
| B [^3] |

```{tip}
| Color |
| ------ |
| C [^4] |
| M [^5] |
| Y [^6] |
```

[^1]: Red

[^2]: Green

[^3]: Blue

[^4]: Cyan

[^5]: Magenta

[^6]: Yellow

After mdformat:

# Document

| Color |
| ------ |
| R [^1] |
| G [^2] |
| B [^3] |

```{tip}
| Color |
| ------ |
| C [^4] |
| M [^5] |
| Y [^6] |
```

[^1]: Red

[^2]: Green

[^3]: Blue

Diff:

--- i/document.md
+++ w/document.md
@@ -19,9 +19,3 @@
 [^2]: Green
 
 [^3]: Blue
-
-[^4]: Cyan
-
-[^5]: Magenta
-
-[^6]: Yellow

Packages:

Package           Version
----------------- -------
markdown-it-py    4.0.0
mdformat          1.0.0
mdformat_footnote 0.1.2
mdit-py-plugins   0.5.0
mdurl             0.1.2
pip               24.3.1

[KyleKing]

I think I might be able to fix this and release tomorrow!