[Bug 139608] Segmentation fault when I try to change size of Lighting pane in Thunderbird - /usr/lib/thunderbird/run-mozilla.sh: line 131: 17331 Segmentation fault (core dumped) "$prog" ${1+"$@"}

[Pik Master]

Public bug reported:

Binary package hint: thunderbird

ser-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.6)
Gecko/20061201 Firefox/2.0.0.6 (Ubuntu-feisty)
Build Identifier: Thunderbird 2.0.0.6 (20070824) + Lightning 0.5 (2007062504)

My lighting pane is minimized below the folder pane, so only the thin bar is
visible. When I try to drag it up, to resize the windows, segmentation fault
occurs. Detailed message:

/usr/lib/thunderbird/run-mozilla.sh: line 131: 17331 Segmentation fault     
(core dumped) "$prog" ${1+"$@"}

I also tried to install nightly build 0.7pre, the same crash.

Reproducible: Always

Steps to Reproduce:
1. switch to Thunderbird classic view
2. install lighting add-on
3. minimize lighting pane
4. quit thunderbird
5. launch thunderbird again
6. resize lightning pane (drag it upwards)
7. crash
Actual Results:  
segmentation fault

Expected Results:  
Lightning pane is resized normally, calendar shows up

Ubuntu 7.04
installed extensions:
                   NS1:name="Duplicate Contact Manager"
                   NS1:name="Thunderbird (default)"
                   NS1:name="Auto Zip Attachments for Thunderbird"
                   NS1:name="MoreColsForAddressBook"
                   NS1:name="Lightning"
                   NS1:name="Polski Language Pack"
                   NS1:name="Rewrap Toolbar Button"
                   NS1:name="Beagle Indexer"
                   NS1:name="Quickfile"
                   NS1:name="forwardas"
                   NS1:name="Search for Sender"
                   NS1:name="Correct Identity"
                   NS1:name="AttachmentRemember"
                   NS1:name="Mail Redirect"
                   NS1:name="EditSender"
                   NS1:name="Maximize Message Pane"
                   NS1:name="Sieve"
                   NS1:name="Allow HTML temp"
                   NS1:name="English (GB) Language Pack"
                   NS1:name="MessageID-Finder"
                   NS1:name="Signature Switch"
                   NS1:name="addressContext"
                   NS1:name="Dictionary Switcher"
                   NS1:name="Display Mail User Agent Extension"

ProblemType: Bug
Architecture: i386
Date: Fri Sep 14 16:10:25 2007
DistroRelease: Ubuntu 7.04
Package: mozilla-thunderbird 2.0.0.6-0ubuntu2
PackageArchitecture: all
SourcePackage: thunderbird
Uname: Linux pkierklo-lap2 2.6.20-16-386 #2 Fri Aug 31 00:51:58 UTC 2007 i686 GNU/Linux
UnreportableReason: This is not a genuine Ubuntu package

** Affects: thunderbird (Ubuntu)
     Importance: Undecided
         Status: New

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Segmentation fault when I try to change size of Lighting pane in Thunderbird - /usr/lib/thunderbird/run-mozilla.sh: line 131: 17331 Segmentation fault (core dumped) "$prog" ${1+"$@"} 
https://bugs.launchpad.net/bugs/139608
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