625481 - Unifinder: "future events list" item for next 7 days disappears after opening/editing non-date entries

Status: UNCONFIRMED

(Calendar :: Calendar Frontend, defect)

Description

[Bob McGowan]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.9) Gecko/20100315 Firefox/3.5.9
Build Identifier: Thunderbird 3.1.7 Lightning 1.0b2 Provider for Google Calendar 0.7.1

I have 4 events comming up in the next 7 days:

  Monday meeting at 6:30PM

  Two tuesday meetings at 6:30PM and 7:30PM

  Wednesday meeting at 7:00AM

If I select the first of two Tuesday meetings, change the category and save it, the line for the event disappears from the list of events.  I can get it back by selecting one of the other durations and then switching back to the 7 day view.

If I select the second of the pair and edit it in the same way, the 4 items remain in view.

Reproducible: Always

Steps to Reproduce:
I'm not sure if this is how to reproduce, since these steps didn't do it for second pair of events, but I can reproduce this way, for this pair, even after deleting one and adding it back.

1. Create two events, immediately contiguaous (end 7:30, start 7:30);
2. Both are recurring, first weekly, second montly;
3. Change some characteristic of the first one, excluding date/time elements.
Actual Results:  
The edited item disappears from the list of events for the next seven days.

Expected Results:  
I would expect it to remain listed, since it is still scheduled for the same date and time.

I have tried to get this to repeat with some other events but cannot get it to happen with them (yet;)

But, with the pair where it does happen, it is consistent and happens (so far) every time.

Any suggestions on how I can collect more data for this issue?