[3.9.x] Markdown: Don't let Liquid objects interrupt paragraphs (#20087)

Co-authored-by: fisker <lionkay@gmail.com>

tests/format/markdown/liquid/__snapshots__/format.test.js.snap

@@ -511,6 +511,163 @@ Inline {{ liquid }} stays inline.
 ================================================================================
 `;
 
+exports[`issue-20083.md - {"proseWrap":"always"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+proseWrap: "always"
+                                                      printWidth: 80 (default) |
+=====================================input======================================
+Taken from https://github.com/mdn/content/blob/3f221b9845703eb21db70cdc321f843d5c1c072b/files/en-us/webassembly/reference/javascript_interface/module/customsections_static/index.md?plain=1#L32-L33
+
+If \`module\` is not a [\`WebAssembly.Module\`](/en-US/docs/WebAssembly/Reference/JavaScript_interface/Module) object instance, a
+{{jsxref("TypeError")}} is thrown.
+
+---
+
+text
+{% comment %} here is comment {% endcomment %}
+
+---
+
+text
+{{ comment }} here is comment {{ endcomment }}
+
+---
+
+text
+{% comment %} text
+
+---
+
+text
+{{ comment }} text
+
+---
+
+text
+{{abc}}
+
+---
+
+text
+{% tag %}
+
+=====================================output=====================================
+Taken from
+https://github.com/mdn/content/blob/3f221b9845703eb21db70cdc321f843d5c1c072b/files/en-us/webassembly/reference/javascript_interface/module/customsections_static/index.md?plain=1#L32-L33
+
+If \`module\` is not a
+[\`WebAssembly.Module\`](/en-US/docs/WebAssembly/Reference/JavaScript_interface/Module)
+object instance, a {{jsxref("TypeError")}} is thrown.
+
+---
+
+text {% comment %} here is comment {% endcomment %}
+
+---
+
+text {{ comment }} here is comment {{ endcomment }}
+
+---
+
+text {% comment %} text
+
+---
+
+text {{ comment }} text
+
+---
+
+text
+{{abc}}
+
+---
+
+text
+{% tag %}
+
+================================================================================
+`;
+
+exports[`issue-20083.md format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+                                                      printWidth: 80 (default) |
+=====================================input======================================
+Taken from https://github.com/mdn/content/blob/3f221b9845703eb21db70cdc321f843d5c1c072b/files/en-us/webassembly/reference/javascript_interface/module/customsections_static/index.md?plain=1#L32-L33
+
+If \`module\` is not a [\`WebAssembly.Module\`](/en-US/docs/WebAssembly/Reference/JavaScript_interface/Module) object instance, a
+{{jsxref("TypeError")}} is thrown.
+
+---
+
+text
+{% comment %} here is comment {% endcomment %}
+
+---
+
+text
+{{ comment }} here is comment {{ endcomment }}
+
+---
+
+text
+{% comment %} text
+
+---
+
+text
+{{ comment }} text
+
+---
+
+text
+{{abc}}
+
+---
+
+text
+{% tag %}
+
+=====================================output=====================================
+Taken from https://github.com/mdn/content/blob/3f221b9845703eb21db70cdc321f843d5c1c072b/files/en-us/webassembly/reference/javascript_interface/module/customsections_static/index.md?plain=1#L32-L33
+
+If \`module\` is not a [\`WebAssembly.Module\`](/en-US/docs/WebAssembly/Reference/JavaScript_interface/Module) object instance, a
+{{jsxref("TypeError")}} is thrown.
+
+---
+
+text
+{% comment %} here is comment {% endcomment %}
+
+---
+
+text
+{{ comment }} here is comment {{ endcomment }}
+
+---
+
+text
+{% comment %} text
+
+---
+
+text
+{{ comment }} text
+
+---
+
+text
+{{abc}}
+
+---
+
+text
+{% tag %}
+
+================================================================================
+`;
+
 exports[`unbalanced-mismatched-braces.md - {"proseWrap":"always"} format 1`] = `
 ====================================options=====================================
 parsers: ["markdown"]

tests/format/markdown/liquid/issue-20083.md

@@ -0,0 +1,34 @@
+Taken from https://github.com/mdn/content/blob/3f221b9845703eb21db70cdc321f843d5c1c072b/files/en-us/webassembly/reference/javascript_interface/module/customsections_static/index.md?plain=1#L32-L33
+
+If `module` is not a [`WebAssembly.Module`](/en-US/docs/WebAssembly/Reference/JavaScript_interface/Module) object instance, a
+{{jsxref("TypeError")}} is thrown.
+
+---
+
+text
+{% comment %} here is comment {% endcomment %}
+
+---
+
+text
+{{ comment }} here is comment {{ endcomment }}
+
+---
+
+text
+{% comment %} text
+
+---
+
+text
+{{ comment }} text
+
+---
+
+text
+{{abc}}
+
+---
+
+text
+{% tag %}