531202 - Group by sort groups all collapsed when filtering

Status: RESOLVED DUPLICATE of bug 387098

(Thunderbird :: Folder and Message Lists, defect)

Description

[roederja]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; de; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; de; rv:1.9.1.5) Gecko/20091121 Thunderbird/3.0

When using the quick filter when group by sort is enabled, all groups are collapsed, so you cannot actually see any e-mails. This is independent of whether the groups were collapsed before starting to filter or not.

Obviously it is annoying that you have to manually open the groups to see the e-mails.

Reproducible: Always

Steps to Reproduce:
1. Sort e-mails by date descending (newest e-mail on top) and enable group by sort
2. Enter something in the quick filter. I mean the old style filter not the new search feature.
3. Filtered e-mails should appear.
Actual Results:  
All the groups are collapsed, so no e-mails are visible.

Expected Results:  
Leave the collapse state of the groups as before starting to filter, or expand them all.