sync: empty-start/end range CFIs left by the cfi-inert skip-link bug (e.g.
epubcfi(/6/24!/4,,/20/1:58)) resolve to a section-spanning range and navigate
to the wrong end of the section. Add isMalformedLocationCfi and discard such
locations on the cloud-sync receive path (useProgressSync) and the kosync push
path (useKOSync) so they can't move the reader or propagate to other devices.
foliate 569cc06 stops generating them but does not repair already-synced values.
reader: bump foliate-js to 167757a to fix the white<->black background flash
when swiping between differently-colored pages; add a regression test for the
sliding per-view background segments.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Huang Xin
d0071a6bcb