Strange behavior of the subsize and start keywords in array datatype

I define my array this way in the yml file and I pass it to deisa plugin (python based plugin).

data:
    local_t:
      type: array
      subtype: double
      size: ['$dsize0', '$dsize1']
      subsize: ['$dsize0 - 2', '$dsize1 - 2']
      start: [1, 1]

When the start : [0,0] is set, the data values are correct. However I noticed strange values in the arrays I share when it is set to start: [1, 1]. It seems that the new pointer to the data is not well set.

I had a quick discussion with Karol, who suggested to try to serialize my data before passing it to deisa. It seems to solve my issue :)

Karol thinks that there is maybe a bug in the to_python function.