$cavebottimewithsametarget$ doesn't work in cave bot?

[hlep]

Hi, i tried to write condition with this ($cavebottimewithsametarget$) variable but when i started cave bot the value of $cavebottimewithsametarget$ was still 0... When i attacked monster with disabled cave bot $cavebottimewithsametarget$ was bigger than 0. Anybody knows why is that?