touying-fn-wrapper is broken inside a grid

[happycorsair]

Hello!

touying-fn-wrapper function doesn't work properly inside a grid.

A simple example:

#let testblock(body) = {
  touying-fn-wrapper((self: none) => {
    body
  })
}

#grid(
  columns: 2,
  text[aaa],
  testblock(
    [bbb],
  ),
)
#testblock(
  [ccc],
)

No problem with aaa or ccc, but bbb is not printed unless I remove touying-fn-wrapper.

PS: Thank you for a great job! Touying and typst are really great!

[OrangeX4]

Fixed in #82 .

It will be released in 0.5.3