Wrong ISM transition name in EHR IM text

On the new specs, http://www.openehr.org/releases/RM/latest/docs/ehr/ehr.html#_the_standard_instruction_state_machine_ism

There is one transition called plan_step on the ISM diagram.

On the example of the GP flow on section 8.2.5.6 it is named as planned_step. I believe the correct name is plan_step.