Function hex gives incorrect results

Hi,

The following demo code illustrates the issue I am running into:

$m_nTemp = InputBox("Bang", "Enter number", "" )
$m_nTemp = $m_nTemp * 2
;$m_nTemp = number( $m_nTemp )
;$m_nTemp = string( $m_nTemp )
ConsoleWrite( "variable type: " & _VarDump( $m_nTemp ) & @CRLF )	
ConsoleWrite("test1: " & $m_nTemp & " : "& hex( $m_nTemp, 2 ) & @CRLF )
$m_nTemp = 4
ConsoleWrite( "variable type: " & _VarDump( $m_nTemp ) & @CRLF )
ConsoleWrite("test2: " & $m_nTemp & " : "& hex( $m_nTemp, 2 ) & @CRLF )

Func _VarDump(ByRef $vVar, $sIndent = '', $IsSupposedToBeUnknown = False)
Select
	 Case $IsSupposedToBeUnknown
		 Return 'Unknown(' & $vVar & ')'
	 Case IsDllStruct($vVar)
		 Return 'Struct(' & DllStructGetSize($vVar) & ')'
	 Case IsArray($vVar)
		 Return 'Array' & @CRLF & _VarDumpArray($vVar, $sIndent)
	 Case IsBinary($vVar)
		 Return 'Binary(' & BinaryLen($vVar) & ')'
	 Case IsBool($vVar)
		 Return 'Boolean(' & $vVar & ')'
	 Case IsFloat($vVar)
		 Return 'Float(' & $vVar & ')'
	 Case IsHWnd($vVar)
		 Return 'HWnd(' & $vVar & ')'
	 Case IsInt($vVar)
		 Return 'Integer(' & $vVar & ')'
	 Case IsKeyword($vVar)
		 Return 'Keyword(' & $vVar & ')'
	 Case IsObj($vVar)
		 Return 'Object(' & ObjName($vVar) & ')'
	 Case IsString($vVar)
		 Return 'String(' & StringLen($vVar) & ') ' & $vVar
	 Case Else
		 Return 'Unknown(' & $vVar & ')'
EndSelect
EndFunc

In this state, the output is (if I enter 2 as a number):
variable type: Integer(4)
test1: 4 : 00
variable type: Integer(4)
test2: 4 : 04

If I uncomment the $m_nTemp = number( $m_nTemp ) line, then I have the same output.
If I uncomment the $m_nTemp = string( $m_nTemp ) line, then the output becomes correct (which is what you would not expect as the documentation specifies that the input should be an integer or binary type):
variable type: String(1) 4
test1: 4 : 04
variable type: Integer(4)
test2: 4 : 04


So this seems to be a bug in hex ?
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