Ken Takata wrote;
> The last assert_false() in the following script fails after 7.4.1577:
> (This is reported by Thinca.)
>
> let obj = {}
> function! obj.func() abort
> endfunction
> let funcnumber = matchstr(string(obj.func), '^function(''\zs.\{-}\ze''')
> call assert_true(exists('*{' . funcnumber . '}'))
> unlet obj
> call assert_false(exists('*{' . funcnumber . '}'))
>
>
> It seems that obj.func() is not freed.
> I think that the following patch fixes the problem, but I'm not sure:
Good catch! It does look like the right solution. I'll add a comment
about why it happens this way: When using the VAR_FUNC name we don't
copy but take over the value, thus should not increment the refcount.
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