[Bug]: cannot parse indented content #1388

What happened?

zx fails with SyntaxError: Unexpected identifier 'assumes' when given the following markdown file: https://github.com/wighawag/template-ethereum-contracts/blob/593bb65e0c3ebffaff0d1c4b938c48003a5cdfdc/README.md?plain=1

How it should work?

it should parse it and execute what is in the code blocks

How to reproduce the bug?

create a file README.md with the content above

and execute

zx README.md

Version

8.8.5

What's OS kind?

Linux

What JS runtime is used?

Node.js

Runtime Version

24.11.1

Error stack / relevant log output

SyntaxError: Unexpected identifier 'assumes'

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