Comment 46 for bug 1846423

Hello,
I don't have time right now to dig into all the stuff to properly propose a patch, but I assume changing those lines in the file icalparser.c (line 1029-1033 in the current version) would work

``` case ICAL_TRIGGER_PROPERTY:
            /* Accept DATE-TIME and DURATION */
            if (value_kind != ICAL_DATETIME_VALUE && value_kind != ICAL_DURATION_VALUE)
                value_err = illegal_type;
            break;
```

direct link to the file https://searchfox.org/comm-central/source/calendar/libical/src/libical/icalparser.c#1029

If an active developer can add this patch, it would be very great (this bug is pretty much annoying); if not possible I will see how to participate directly in patching the file, but I'm not used to big projects participations...