[Octave-bug-tracker] [bug #44670] hgload can't open Matlab figures

[Guillaume]

Follow-up Comment #33, bug #44670 (project octave):

So far, I've been concerned with compatibility with Matlab figures (e.g. from
a hgS_070000 struct) so the fix is in struct2hdl.m. From what I understand
from Pantxo's comment #3 and comment #6, hdl2struct.m uses a different
behavior for the "special" field (storing indices instead of handles):
https://hg.savannah.gnu.org/hgweb/octave/file/a21d7d269472/scripts/plot/util/hdl2struct.m#l75
https://hg.savannah.gnu.org/hgweb/octave/file/a21d7d269472/scripts/plot/util/struct2hdl.m#l618
so if a change was made to use Matlab mechanism, there would be a backward
compatibility issue with figures saved by Octave (in a s_oct40 struct).

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