updatedb fails to put UPDATEDB_MARK in nutch-2.0

[alxsss]

Hello,


I noticed that updatedb command must remove gen, parse and fetch marks and put 
UPDATEDB_MARK mark.
according to the code 
 Utf8 mark = Mark.PARSE_MARK.removeMarkIfExist(page);
    if (mark != null) {
      Mark.UPDATEDB_MARK.putMark(page, mark);
    }

in DbUpdateReducer.java

However, outputting markers in Hbase shows that updatedb removes all marks, 
except injector one and does not put  UPDATEDB_MARK.

Thanks.
Alex.