[bugreport] upload while capturing hard to start

With previous versions of the app, one could capture a bunch of images, start the upload, and switch to the capture mode right away.
With the recent versions, upload activity shows the EXIF tag adding spinner (without any counter numbers yet), and becomes unresponsive - it is not possible to switch to the capture mode. While it seems to become responsive a bit later and allows to start capture, that happens minutes later (not acceptable for contributors), and anyway crashes as hell ( [bugreport] latest ios app crashing ), making such a workflow impossible.