Alternative interpretation - by current chair - is that chair can announce voting any any random time - for example, tomorrow (with voting starting after a month later), without any consultation with other Councilors, Community, or anyone.
I agree, that fixing this would require referendum. BTW, what do You think about sensible way it should be written, to avoid any abuse? IMO, "within 6 months, not earlier than after 5 months since last election" would do it.