Do not reset start time of steps when something is recomputed

Author: Kobzol

database/src/pool/postgres.rs

@@ -1168,7 +1168,7 @@ where
         self.conn()
             .execute(
                 "update collector_progress set start_time = statement_timestamp() \
-                where aid = $1 and step = $2 and end_time is null;",
+                where aid = $1 and step = $2 and start_time is null and end_time is null;",
                 &[&(aid.0 as i32), &step],
             )
             .await

database/src/pool/sqlite.rs

@@ -1054,7 +1054,7 @@ impl Connection for SqliteConnection {
         self.raw_ref()
             .execute(
                 "update collector_progress set start = strftime('%s','now') \
-                where aid = ? and step = ? and end is null;",
+                where aid = ? and step = ? and start is null and end is null;",
                 params![&aid.0, &step],
             )
             .unwrap()