Bundle export with two Touying presentations results in wrong headings

I’m trying to export two touying slideshows with a single bundle file:

#import "@preview/touying:0.7.4": *
#import themes.simple: *

#document(
  "slides-1.pdf",
  [
    #show: simple-theme
    == slide 1 A
    - this should be slideshow 1
    - but the headings are from slideshow 2!
    == slide 1 B
    == slide 1 C
  ]
)

#document(
  "slides-2.pdf",
  [
    #show: simple-theme
    == slide 2 A
    this should be slideshow 2
    == slide 2 B
    == slide 2 C
  ]
)

However, the headings of the second slideshow show up in both PDFs,
this is the first slide of the first slideshow:

I assume this is some introspection bug in touying, or am I holding it wrong? Is there a way to fix this? Thanks a lot in advance :)

yes it was an introspection “bug” of touying: we simply did not release a new version that could cope with typst’s 0.15 multiple documents yet. will be added in touying v0.8.0, which will be out very soon. you can test it out now by installing the dev branch locally.