Progress bar off-by-one

[Garmelon]

When using a theme that includes a progress bar in its header (e.g. university), the progress bar appears to be off by one slide.

If a slide has animations, the progress bar is different for the first subslide and subsequent subslides. If I counted correctly, it is incorrect on the first subslide and correct on subsequent subslides.

This appears to be caused by logic.logical-slide being too low in the header: ... of page because it is only step()-ed in the body. I'm not sure how one would go about fixing this.

Example:

#import "@preview/polylux:0.3.1": *
#import themes.university: *

#show: university-theme

#title-slide(
  title: [Progress bar example]
)

#slide[
  - Slide 1 #pause
  - with some #pause
  - animations
]

#slide[
  - Slide 2 #pause
  - with some #pause
  - animations
]

#slide[
  - Slide 3 #pause
  - with some #pause
  - animations
]