The idea is to reduce the risk of calculating a packet as lost if a packet is reordered between two feedback reports. It works as long as the recevied feedback does not complete an observation. Bug: webrtc:42222865 b/349765923 Change-Id: Iaf1595e624f546951baf3998d161f4cd1d5d491b Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/355942 Reviewed-by: Diep Bui <diepbp@google.com> Commit-Queue: Per Kjellander <perkj@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42562}