I think I'm seeing that times like this:
<2022-01-07 Fri 10:00-11:00>
are being translated by Beorg to:
<2022-01-07 Fri 10:00>--<2022-01-07 Fri 11:00>
This is how date/time ranges are currently implemented. However definitely room for optimising this when the times are on the same day. I've made a note to take a look at this for a future update.
One issue of this is that this is a change for the version control system -- even though you didn't make this change.