Create initial from with sender timestamp

Author: link2xt

src/receive_imf.rs

@@ -2096,7 +2096,7 @@ async fn create_group(
                                  VALUES                     (?1,      ?2,         ?3)
                                  ON CONFLICT (chat_id, contact_id)
                                  DO UPDATE SET add_timestamp=MAX(add_timestamp, ?3)",
-                                (chat_id, from_id, tools::time()),
+                                (chat_id, from_id, mime_parser.timestamp_sent),
                             )?;
                         }