I think that at the heart here we have a core vs non-core issue.
Core modules should be upto date with the latest things that have happened
Core modules that cause seg faults tend to get fixed fast where as when a module such as Clone causes one it is not considered such an issue.
perl -e 'use Clone qw(clone); $a = \$b; undef $a; $c = clone $a;'
and
perl -e 'use Clone qw(clone); $a ={}; undef $a; $c = clone $a;'
Cause Seg faults
but
perl -e 'use Clone qw(clone); undef $a; $c = clone $a;'
and
perl -e 'use Clone qw(clone); $a =""; undef $a; $c = clone $a;'
does not cause this issue.
Core supports Uni-code but it takes time for modules to catch up.
It appears that Clone does not support Unicode structures correctly :-
perl -MClone=clone -le '%a=(chr 256 =>1);$c=clone \%a; print ord fore
+ach keys %$c'
196
as oposed to
perl -MStorable=dclone -le '%a=(chr 256 =>1);$c=dclone \%a; print ord
+ foreach keys %$c'
256
Hope this clears up a few things
UnderMine
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