counter: fix add all behavior
counter: fix add all behavior

Signed-off-by: Alexandre Terrasa <b30f4169e054ee7b8c243480bcfcef62416f3b08@moz-code.org>

jcbrinfo/nit,jcbrinfo/nit,jcbrinfo/nit,jcbrinfo/nit,jcbrinfo/nit,privat/nit,jcbrinfo/nit,jcbrinfo/nit,privat/nit,privat/nit,jcbrinfo/nit,privat/nit,jcbrinfo/nit,privat/nit,privat/nit,jcbrinfo/nit,privat/nit,privat/nit,privat/nit,jcbrinfo/nit,privat/nit