The row-id fast path for a marked native-image mirror row continued
without advancing state_replay_idx, unlike the ordinary and multimodal-
mirror replay paths. The edited checkpoint then never read as consumed,
so a rerun reply that exists only in state.db was truncated. Master (no
marker branch) keeps that reply.
Advance the replay index when the resolved sidecar row is the next
expected visible row, the same guard the mirror branch uses. Adds a
regression that fails without the fix: sidecar [u1,a1,img#42,a_img,uE],
state [.., marked img#42, a_img, u_old, a_old, uE, aE], watermark 900,
boundary 861 -> aE survives, u_old/a_old stay out.
Found by the release-manager advisor gate on #7754.
nesquena-hermes
315ea7d3a8