The sort order at the beginning is correct, but after you press refresh button the sequence changes.
I am using the buildh.bat file in samples folder to compile and link.
#include "fivewin.ch"
REQUEST HB_CODEPAGE_TRWIN
static oCn
function Main()
  local oRs, oDlg, oBrw, oFont
  HB_SetCodePage("TRWIN")
  FWCONNECT oCn HOST "localhost" USER "root" PASSWORD "mypassw" DATABASE "test" PORT 3306 CHARSET "latin5"
  oCn:lShowErrors := .T.
  CreateTables()
  oRs  := oCn:RowSet( "SELECT CUSTID,FIRST FROM test_trk ORDER BY FIRST" )
  DEFINE FONT oFont NAME "Ms Sans Serif" SIZE 0, -12
  DEFINE DIALOG oDlg SIZE 500,600 FONT oFont PIXEL TRUEPIXEL TITLE "EditBaseRecord()"
  @ 70,20 XBROWSE oBrw SIZE -20,-20 PIXEL OF oDlg ;
      DATASOURCE oRs AUTOCOLS AUTOSORT ;
      COLSIZES -10, -30 ;
      CELL LINES NOBORDER
  oBrw:CreateFromCode()
  @ 20, 20 BTNBMP PROMPT "ADD"  SIZE 100,30 PIXEL FLAT OF oDlg ;
   ACTION oRs:EditBaseRecord( nil, .t., { |oRec| MyEditDlg( oRec ) }, oBrw )
  @ 20,130 BTNBMP PROMPT "EDIT" SIZE 100,30 PIXEL FLAT OF oDlg ;
   ACTION oRs:EditBaseRecord( nil, .f., { |oRec| MyEditDlg( oRec ) }, oBrw )
  @ 20,240 BTNBMP PROMPT "REFRESH" SIZE 100,30 PIXEL FLAT OF oDlg ;
   ACTION ( oRs:Requery(), oBrw:Refresh(), oBrw:SetFocus() )
  ACTIVATE DIALOG oDlg CENTERED
  oFont:End()
return nil
function CreateTables()
  oCn:DropTable( "test_trk" )
  if !oCn:TableExists( "test_trk" )
   oCn:CreateTable( "test_trk", { ;
     { "CUSTID", 'N',  3, 0, "PRI" }, ;
     { "FIRST",  'C', 20, 0 }, ;
     { "SECOND", 'C', 20, 0 } } )
   oCn:Insert( "test_trk", "CUSTID, FIRST, SECOND", ;
     { {1, 'A', 'B'}, {2, 'Ş', 'B'}, {3, 'Z', 'B'}, {4, 'W', 'B'}, {5, 'B', 'B'}, ;
      {6, 'Q', 'B'}, {7, 'N', 'B'}, {8, 'İ', 'B'}, {9, 'Ü', 'B'} } )
  endif
return nil
static function MyEditDlg( oRec )
  local lNew   := ( oRec:RecNo == 0 )
  local oDlg, oFont
  DEFINE FONT oFont NAME "Ms Sans Serif" SIZE 0, -12
  DEFINE DIALOG oDlg SIZE 400,300 PIXEL TRUEPIXEL FONT oFont
  @ 030,020 SAY "ID:"     SIZE 80,20 PIXEL OF oDlg RIGHT
  @ 060,020 SAY "First"    SIZE 80,20 PIXEL OF oDlg RIGHT
  @ 090,020 SAY "Second"    SIZE 80,20 PIXEL OF oDlg RIGHT
  @ 030,120 GET oRec:CUSTID  SIZE 100,22 PIXEL OF oDlg
  @ 060,120 GET oRec:FIRST   SIZE 240,22 PIXEL OF oDlg
  @ 090,120 GET oRec:SECOND  SIZE 240,22 PIXEL OF oDlg
  @ 140,020 BTNBMP PROMPT "Save"  SIZE 150,30 PIXEL FLAT OF oDlg ;
       ACTION ( If( oRec:Modified(), oRec:Save(), nil ), oDlg:End() )
  @ 140,240 BTNBMP PROMPT "Cancel" SIZE 150,30 PIXEL FLAT OF oDlg ACTION oDlg:End()
  ACTIVATE DIALOG oDlg CENTERED ON PAINT oDlg:Box( 15, 10, 125, 390 )
return nil