option to share address when setting the location on events

http://sandbox.civicrm.org/civicrm/event/manage/location?action=update&reset=1&id=7

It's now an option to share the address. I'm assuming that it wasn't intended to show up there

1) The contact name field is an autocomplete

2) being able to create a new location/use an existing one is a bit redondant it seems with that shared address

I would skip one of the two, (the new location/use an existing one) is not advanced IMO and if not too complicated, I'd suggest to skip this one and keep the shared address.

But on the other hand, I suspect that it isn't planned to share an address between an event and a contact, and wouldn't want to rewrite history and move the location of previous events because the company is moving to a new address
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