430444 - Can't save tasks when main Thunderbird window is closed

Status: VERIFIED DUPLICATE of bug 390293

(Calendar :: Tasks, defect)

Description

[avenue42]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.14) Gecko/20080404 Firefox/2.0.0.14
Build Identifier: Lightning version 0.8 (build 2008033121)

If I close the main Thunderbird window while editing a task, I can no longer save any changes. Neither the "Save and Close" button nor the "File|Save" menu item seems to do anything. If, after trying to save the changes, I then close the task, the "Task has not been saved" warning does not appear. 

I cannot see any way to reopen the main Thunderbird window in this situation, so I seem to have no option but to close the task and thus discard my changes. 

The "Task has not been saved" warning does appear if I do not try to save the changes first. 

Having the Address Book window open appears to protect against the problem. It seems this can even be closed after the main Thunderbird window without causing the problem to occur, as long as no further changes are made to the task.


Reproducible: Always

Steps to Reproduce:
1. Open a task. Make some changes.
2. Switch to main Thunderbird window, and close it.

3. Click "Save and Close". Nothing seems to happen.
or
3. Select "File|Save" menu item.

4. Close task, e.g. by selecting "File|Close". Note "Task has not been saved" warning does not appear.
5. Reopen main Thunderbird window.
6. Reopen task. Note changes were not saved.
Actual Results:  
Changes made to the task have been lost.

Expected Results:  
Changes should have been saved. Failing that, the "Task has not been saved" warning should have appeared.

System details:
Lightning version 0.8 (build 2008033121)
Thunderbird version 2.0.0.12 (20080213)
 - using default theme
 - using 3 other extensions (Growl Notifications 1.0.2, Image Zoom 0.3.1, Talkback 2.0.0.9)
Mac OS X 10.4.11
MacBook Pro, 2.2 GHz Intel Core 2 Duo