525660 - Messages disappear from folder when applying group by sort

Status: RESOLVED DUPLICATE of bug 517467

(Thunderbird :: General, defect)

Description

[Martin]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.4) Gecko/20091016 Firefox/3.5.4 (.NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.5pre) Gecko/20091031 Shredder/3.0pre

Tried different folders same result.  If I sort by a field and then apply group by sort all messages disappear.
Search for messages still works. If I exit TB, delete the .msf file for the folder, restart TB all messages are there and fully accessible, until I try to group by sort again.

Reproducible: Always

Steps to Reproduce:
1. Open folder, sort messages
2. goto view > sort by grouped by sort; click
3.all messages disappear until *.msf file for that folder is erased and TB restarted
Actual Results:  
All messages disappear, in all folders tested. Shutting down TB and removing all *.msf files causes TB to re-index folders on restart and all messages re-appear.  Clicking on folder > properties > rebuild index does not work

Expected Results:  
Messages should be grouped by sort field.