Subset on edge is silently "reduced"

[Dimitar Misev]

To reproduce the problem:

rasql --user rasadmin --passwd rasadmin -q \
'create collection NEXTMap_5_DTM GreySet'

rasql --user rasadmin --passwd rasadmin -q \
'insert into NEXTMap_5_DTM values
 marray i in [27000:27848,-17000:-16000] values 1c'

rasql -q 'Select sdom( c[27266:27548, -17042:-16952] ) 
          FROM NEXTMap_5_DTM as c' --out string | grep Result

rasql -q 'Select count_cells( c[27266:27548, -17042:-16952] != 1c ) 
          FROM NEXTMap_5_DTM as c' --out string | grep Result

It should print

  Result element 1: [27266:27548,-17042:-16952]

  Result element 1: 25753

But currently it prints

  Result element 1: [27266:27548,-17000:-16952]

  Result element 1: 13867

In the query the subset [27266:27548, -17042:-16952] is slightly outside the array sdom (on the second dimension, -17042:-17001 is outside of -17000:-16000), and for some reason it's automatically reduced to fit in the tile domain [27266:27548,-17000:-16952].