bug#69894: 29.1; Icalendar export conflict with calendar iso date

[Eli Zaretskii]

> From: Ulf Jasper <ulf.jasper@web.de>
> Cc: Erwan Hingant <erwan.hingant@mailo.com>,  rwn@mailo.com,
>   eggert@cs.ucla.edu,  69894@debbugs.gnu.org
> Date: Mon, 08 Apr 2024 07:50:48 +0200
> 
> Am 06.04.2024 um 12:58 (+0300) schrieb Eli Zaretskii:
> 
> 'icalendar--datestring-to-isodate' does not expect dashes in iso style
> input strings (as the observation/patch shows).  However, if the diary
> machine accepts dashes then 'icalendar--datestring-to-isodate' should
> also do so.
> 
> I would add some testcases to the ert test of
> 'icalendar--datestring-to-isodate' and then apply the patch.

Thanks, done on the master branch, and closing the bug.