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`--scrollback`'s help said the flag makes no difference "for a never-resized pane", and the reference said the same. Both are wrong for the panes where the difference matters most. I killed a daemon under a running GUI, watched it come back, and captured a pane that had `RESTORE-MARKER-7788` in it. Plain `capture` answered with two lines — the restore banner and a prompt — while `--scrollback` had the marker and everything around it. Nothing had been resized. `ReplayRing::seeded` ends with `resize(size)`, deliberately: the restored screen is replayed at the size it was recorded at, and the new shell writes at the size the pane came back as. When those differ the restored screen is sealed into an earlier segment, and the default capture cannot see it. That is the agent-facing primitive answering "almost nothing" for a pane that kept its screen, with the help explaining that this only happens after a resize. Both now say restores count, and say what a plain capture looks like when it does. `resize` returns early on an unchanged size, so a pane that comes back the same shape really does keep one segment — the test covers both sides of that, which is the part the wording turns on.