Fails to properly decode slim tzdata

[Milan Crha]

On Wed, 2021-02-17 at 08:39 -0500, Ken Murchison wrote:
> I'm wondering if this commit fixed one thing and broke another:
>  
> https://github.com/libical/libical/commit/c7e767bfe1d218aaf845686f9811195cecc7be2a
>  

	Hi,
it's a good commit, it fixed things in a better way. When I revert the
libical checkout before that commit, libical doesn't read the "slim"
tzdata at all - the component is NULL, while with it libical reads the
tzdata fine except of the last subcomponent of the VTIMEZONE.

That commit is the reason why I CC'ed you here directly.

> I'm also wondering if this commit would fix the issue (I don't have
> time  to test right now but can later this week):
> 
> https://github.com/eggert/tz/commit/7b4808dbf00896e606a0aa3b82ff9eb9b074323c
>  

Unfortunately not. I checked out the git master of the `tz` project and
it doesn't change anything. Neither reverting the commit there (there
had been some follow up changes in the zic.c, which prevented a clean
revert of that commit).

I think it's some glitch on the libical side, but I do not understand
the data format to know what it is.
	Thanks and bye,
	Milan