Exposed filters don't work - when equivalent filter is deleted

Does anybody else have these ?

test case:
create filter (lets say of a CCK Interger field)
expose it in the exposed filters
erase filter from filters (exposed filter stays there)
save view
the filter does not work at all

if I edit the view and create that filter again and save
the filter is working
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maybe the filter being deleted should delete its corresponding exposed filter

I know you would ask why erase a filter that has being exposed - well just to save space on my screen when editing the view filters !!