Currently, our event log is keeping all the previous data and then
fetching and appending to our state list. This causes duplicates, since
we're keeping the existing list and might be getting the same data, but
with added events at the end.
This fix changes the logic to slice existing data at offset. Which
should make sure we only append the new data.
Co-authored-by: Fredrik Strand Oseberg <fredrik.no@gmail.com>
Co-authored-by: Fredrik Strand Oseberg <fredrik.no@gmail.com>
