Remove getUser Hack. This caused the datacage not to show old_calculations which was probably the reason for this. But this also broke the range filtering (before the recent datacage changes which made user id obsolete for datacage filtering)

select.abflusstafel = \
    SELECT ABFLUSSTAFEL_NR, \
           ABFLUSSTAFEL_BEZ, \
           GUELTIG_VON, \
           GUELTIG_BIS, \
           PEGELNULLPUNKT, \
           AT.BFG_ID \
    FROM ABFLUSSTAFEL AT \
    WHERE MESSSTELLE_NR LIKE :number