Asking for confirmation, when trying to open more than one tagged thread at once

[tradzik]

https://factor.cc/pad/p/sup-ideas - issue 21

@eMBee ping

[eMBee]

looks good, one suggestion though, it is possible to count the messages in the threads too? it is quite a difference if i open 10 threads with 1 message each (which causes 10 messages to be opened) vs opening 5 threads with 10 messages each (which causes 50 messages being opened)

[eMBee]

almost, please show the number of messages and threads: do you want to open 5 threads with 50 messages?

[eMBee]

code-in task closed: http://www.google-melange.com/gci/task/view/google/gci2014/5800832842858496