Shows the dialog: starts poll in a fiber of the process's scope (the dialog
outlives the action that raised its answer), after closing any dialog already
up. The poller runs until StopLoginNotifStatusPoll interrupts it or
the process is disposed. The whole close-and-start runs under the state's
lock, so of two concurrent starts exactly one poller survives — the later
one.
Shows the dialog: starts
pollin a fiber of the process's scope (the dialog outlives the action that raised its answer), after closing any dialog already up. The poller runs until StopLoginNotifStatusPoll interrupts it or the process is disposed. The whole close-and-start runs under the state's lock, so of two concurrent starts exactly one poller survives — the later one.