echo value delayed expansion

[andry81]

@echo off

setlocal

set A=123/456
set "B="

rem with issue
setlocal ENABLEDELAYEDEXPANSION & (echo.!A:/=\!) & endlocal
setlocal ENABLEDELAYEDEXPANSION & (echo.!B!) & endlocal

rem workaround 1
setlocal ENABLEDELAYEDEXPANSION & (echo(!A:/=\!) & endlocal
setlocal ENABLEDELAYEDEXPANSION & (echo(!B!) & endlocal

rem workaround 2
setlocal ENABLEDELAYEDEXPANSION & (echo;!A:/=\!) & endlocal
setlocal ENABLEDELAYEDEXPANSION & (echo;!B!) & endlocal

Output:

A:/=\

123\456

123\456