[Bug fortran/81735] [6/7/8 Regression] double free or corruption (fasttop) error (SIGABRT) with character(:) and custom return type with allocatable

[pault at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81735

--- Comment #8 from Paul Thomas <pault at gcc dot gnu.org> ---
Created attachment 42544
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42544&action=edit
Fix for the problem

This was part of the patch for #82375, which was a PDT problem.

Please note the comment. I will now have to understand why this nullifying of
'tmp' is necessary. I couldn't see it last time.

Cheers

Paul