[tz] Am I missing an implicit rule?

[Paul Eggert]

On 4/11/19 7:05 AM, Grilled Chipolatas wrote:
>
> Or am I missing an implicit rule: being that a new zone change discard
> any current rule
> (here Morocco   2018    only    -    Jun    17     2:00    1:00    - )?

When a zone line mentions a rule, the rule is in effect while that
particular zone line is active, but the rule's effect does not persist
to later lines of the zone. So your understanding is correct.