- scheduler: fix earlier fix to HR race condition.

I was doing "careful update" but not checking
    that the # of affected rows is 1

svn path=/trunk/boinc/; revision=14757

checkin_notes

@@ -1438,3 +1438,11 @@ David  Feb 17 2008
 
     html/user/
         team_edit_action.php
+
+David  Feb 17 2008
+    - scheduler: fix earlier fix to HR race condition.
+        I was doing "careful update" but not checking
+        that the # of affected rows is 1
+        
+    sched/
+        sched_hr.C

sched/sched_hr.C

@@ -103,6 +103,7 @@ bool already_sent_to_different_platform_careful(
         sprintf(buf2, "hr_class=%d", wu_hr_class);
         retval = db_wu.update_field(buf, buf2);
         if (retval) return true;
+        if (boinc_db.affected_rows() != 1) return true;
     }
     return wreq.hr_reject_temp;
 }