Qt Creator iostool steals focus from other windows if ios device is in "Connected" state

I just built Qt Creator 3.5.81 from source.

I have two iPhones (both on ios 8.4) connected to the computer, one is a development device that is in the "Ready to Use" state. The other is in a "Connected" state, but is not used for development, so I don't want it to be deployable.

When a device in the Connected state is plugged in (and continuing until Qt Creator is restarted, my active window frequently loses focus for a few microseconds at a time.

Perfectly reproducible on my setup. Has no problem if only the development device is connected. My not-from-source Qt Creator (3.3.0) has no problem.

I wrote a quick python script to determine what was stealing the focus and quantify how often. Output is the number of microseconds since starting and the app who has focus, any time focus is changed.

1 iTerm
26 iostool
34 loginwindow
35 iTerm
337 Qt Creator
518 Google Chrome
685 iostool
699 Google Chrome
1347 iostool
1361 Google Chrome
2001 iostool
2014 Google Chrome
2662 iostool
2675 Google Chrome
3324 iostool
3338 Google Chrome
3985 iostool
4000 Google Chrome
5454 iostool
5468 Google Chrome
6610 iostool
6624 Google Chrome
8115 iostool
8128 Google Chrome
9102 iostool
9114 Google Chrome
9757 iostool
9772 Google Chrome
11214 iostool
11230 Google Chrome
11875 iostool
11889 Google Chrome
12538 iostool
12559 Google Chrome
13198 iostool
13212 Google Chrome
13854 iostool
13863 Google Chrome
14518 iostool
14531 Google Chrome
15179 iostool
15194 Google Chrome
15833 iostool
15849 Google Chrome

(happy to include a longer time period, but this seems to demonstrate the issue.)