anchor.diff:              call end_report_loop(ireport, nparticles_old, t1, soft_exit)
   
               if (soft_exit) exit
  -
  -            ! TEMPORARY: population on reference determinant.
  -            ! As we might select the reference determinant multiple times in
  -            ! a cycle, the running total of D0_population is incorrect (by
  -            ! a factor of the number of times it was selected).  Fix.
  -            call search_walker_list(f0, 1, tot_walkers, hit, pos)
  -            D0_population = walker_population(1,pos)
   
           end do
   
  
positive.code: 
  implicit none
  
  ! TEMPORARY ONLY
  integer :: D0_normalisation
  
  contains
  
negative.code:         do ireport = 1, nreport
  
              call init_report_loop()
  
              do icycle = 1, ncycles
  
                  ! Population on reference determinant.
                  ! As we might select the reference determinant multiple times in
                  ! a cycle, the running total of D0_population is incorrect (by
                  ! a factor of the number of times it was selected).  Fix.
                  call search_walker_list(f0, 1, tot_walkers, hit, pos)
                  D0_population = walker_population(1,pos)
  
  
                  ! Note that 'death' in CCMC creates particles in the spawned
                  ! list, so the number of deaths not in the spawned list is
  