[xml/sgml-pkgs] Bug#568382: libxslt1.1: Invalid free() in xslReleaseRVT

[Toby Speight]

reassign 568382 libxml-libxslt-perl
thanks

I'm now becoming convinced that this is a memory management issue
between Perl and libxslt - I think that both are trying to free the
same objects.  So I'm reassigning this - feel free to punt it back to
libxslt if appropriate.

The following code should demonstrate this, and gives a good backtrace
under GDB (try it with and without the 'push @keep'):

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Further experimentation shows that this issue is not triggered if I
select the text content instead of the attribute to pass to the
extension function - this may be a basis for a workaround for me.
Alternatively, going through a second variable seems to work, thus:

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