Sec. 85.15  Subsequent sentences.
*  1.  Indeterminate  and  determinate  sentences.   The  service  of an
indeterminate or a determinate sentence of  imprisonment  shall  satisfy
any  sentence  of  intermittent  imprisonment imposed on a person for an
offense committed prior to the time  the  indeterminate  or  determinate
sentence   was   imposed.   A  person  who  is  serving  a  sentence  of
intermittent imprisonment at the time an indeterminate or a  determinate
sentence of imprisonment is imposed shall be delivered to the custody of
the state department of correctional services to commence service of the
indeterminate or determinate sentence immediately.
* NB Effective until 2005/09/30
   *  1.   Indeterminate  and  reformatory sentences.  The service of an
indeterminate or a reformatory sentence of  imprisonment  shall  satisfy
any  sentence  of  intermittent  imprisonment imposed on a person for an
offense committed prior to the time  the  indeterminate  or  reformatory
sentence   was   imposed.   A  person  who  is  serving  a  sentence  of
intermittent imprisonment at the time an indeterminate or a  reformatory
sentence of imprisonment is imposed shall be delivered to the custody of
the  state  department  of  correction  to  commence  service   of   the
indeterminate or reformatory sentence immediately.
* NB Effective 2005/09/30
   2.   Definite  sentences.   If a definite sentence of imprisonment is
imposed on a person who  is  under  a  previously  imposed  sentence  of
intermittent  imprisonment,  such  person  shall commence service of the
definite sentence immediately.  Where such definite sentence  is  for  a
term  in  excess  of  thirty  days,  the  service of such sentence shall
satisfy the sentence of intermittent imprisonment unless the sentence of
intermittent imprisonment is revoked, or a warrant is issued pursuant to
subdivision three  of  section  85.10  of  this  article  and  prior  to
satisfaction of, or conditional release under, such definite sentence of
imprisonment.

(For verification consult Official Text at Senate Gopher site.)