With a recent change introduced a connectable advertiser will reserve
a connection object when started. In the disconnected callback the
disconnected connection object is not yet released, so the application
is not able to allocate this connection object for a new connectable
advertiser until after the disconnected callback.
reserve conn commit: 46bf20036a
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
751868a806