Error while closing (HeidiSQL) client

date/time : 2014-05-08, 10:41:29, 53ms
computer name :
user name :
registered owner :
operating system : Windows 8 build 9200
system language : Spanish
system up time : 39 minutes 28 seconds
program up time : 11 minutes 6 seconds
processors : 2x Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz
physical memory : 1139/3017 MB (free/total)
free disk space : (C:) 42,65 GB
display mode : 1280x1024, 32 bit
process id : $1038
allocated memory : 78,43 MB
largest free block : 1,29 GB
executable : heidisql.exe
exec. date/time : 2014-04-21 16:08
version : 8.3.0.4761
compiled with : Delphi XE5
madExcept version : 4.0.8.1
callstack crc : $6f9c9e60, $353d4219, $353d4219
exception number : 1
exception class : EAccessViolation
exception message : Access violation at address 6F9C9E60 in module 'libpq.dll'. Write of address 0014003C.

main thread ($3a4):
6f9c9e60 libpq.dll
6f9c4a6b libpq.dll PQfinish
0082ef26 heidisql.exe dbconnection 1822 +44 TPgConnection.SetActive
009348c8 heidisql.exe Main 2001 +52 TMainForm.ConnectionsNotify
0040c974 heidisql.exe System 549 +0 DynArraySetLength
0084deb2 heidisql.exe dbconnection 38 +0 {System.Generics.Collections}TList<dbconnection.TDBConnection>.Notify
0084eb27 heidisql.exe dbconnection 728 +0 {System.Generics.Collections}TObjectList<dbconnection.TDBConnection>.Notify
0084e6c0 heidisql.exe dbconnection 728 +0 {System.Generics.Collections}TList<dbconnection.TDBConnection>.DeleteRange
0084dd18 heidisql.exe dbconnection 38 +0 {System.Generics.Collections}TList<dbconnection.TDBConnection>.SetCount
0067a835 heidisql.exe Vcl.Forms TCustomForm.DoDestroy
0067a686 heidisql.exe Vcl.Forms TCustomForm.Destroy
004a5985 heidisql.exe madExcept InterceptClassDestroy
004084b0 heidisql.exe System 549 +0 TObject.Free
00539413 heidisql.exe System.Classes TComponent.DestroyComponents
00678415 heidisql.exe Vcl.Forms DoneApplication
0044c105 heidisql.exe System.SysUtils DoExitProc
00409fe9 heidisql.exe System 549 +0 @Halt0
75de17ab KERNEL32.DLL BaseThreadInitThunk

Yes, PostgreSQL connection crashes in libpq.dll->PQfinish when using the 32bit executable. I have no clue why yet. See here: http://www.heidisql.com/forum.php?t=7025#p15471