Knowledge base›Fields›is_merged_message
field/is-merged-messageBoolean metadata field on the answer: true when the visible message was merged server-side from several source messages (source_message_ids, continuation_message_id). In the 8 Oct evidence the DIL answer carried two source messages; the cite-only cases in the free series are merged as well.
Anyone counting messages or measuring positions is otherwise using the wrong unit.
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