528811 - When Lightning CACHE is activated, after changing a calender item its alert is removed and cannot be set again

Status: RESOLVED DUPLICATE of bug 477287

(Calendar :: Provider: GData, defect)

Description

[dfghjkjhg]

User-Agent:       
Build Identifier: Thunderbir Version 2.0.0.23 (20090812); Lightning 0.9 (Build 2008091719); Provider for Google Calendar 0.5.5

I activated the Lightning CACHE in order to make Lighting faster (otherwise Ligthning loads all calendars again and again whenever selecting another week/month, what takes too much time).

After having activated the CACHE I can make new entries with alerts in Lightning as usual and it works fine.
But as soon as I change something within a calender item (e. g. the titel) or I say "remind me again in e. g. 5 min." after I got an alert, the alert is removed from the calendar item complety (and also synced without alert to the Google Calendar).
The removed alert cannot be set again ! Even if you open the calender item and set an alert again and click save the alert will not be saved in fact !

--
Remark:
I just tried the above described with "CalDAV" instead of "Provider for Google Calender".
With CalDAV the above described is no problem and works. Therefore for me it seems to be a bug in "Provider for Google Calender".


Reproducible: Always

Steps to Reproduce:
1. Activate Lighting CACHE and restart Thunderbird
2. Create a calender item with an alert (and save) --> alert works
3. Change something within that calender item (and save) --> alert is removed
4. Open the calendar item again and set an alert again (and save)
5. Open the calendar item again and you will see that there's still no alert displayed
Actual Results:  
The alert is removed and cannot be set again.

Expected Results:  
The alert should not be removed.

Comment 1

[dfghjkjhg]

Amendment:
Meanwhile the problem also happend WITHOUT having enabled the Lightning CACHE.
Just activated the debug.log
Couldn't get any error message so far.

Comment 2

[dfghjkjhg]

Just tested this again with:
  Thunderbird 3.0.1
  Lightning 1.0b1
  Provider for Google Calendar 0.6b1
--> Still the same result/problem.


(However I guess we can forget my comment#1 - because never happend again WITHOUT cache - maybe I did something wrong at that time.)