ADF saving does not always get initiated after clicking on the save button

[dvanthienen]

No trace on the Tango core of a saving request.

[PerrineAguiar]

After some investigation, here are some results:

• The save_map service gets called
• The Tango API TangoService_saveAreaDescription gets called
• After TangoService_saveAreaDescription gets called, I can see a log message from Tango in adb logcat saying:

  06-29 17:57:07.870 25476-25902/? I/tango: tango_application.cc:1159 Stopping sensors and data processing before saving map

  but that's it, then nothing happens.

• After installing the previous version of TangoCore (Hopak), the issue does not appear anymore. Here are the log messages I see in this case after TangoService_saveAreaDescription gets called:

  07-04 15:59:52.965 25476-25902/? I/tango: tango_application.cc:1159 Stopping sensors and data processing before saving map.
  07-04 15:59:52.967 25476-27690/? D/tango-hal: tango-context.cpp:Stop():356 Stop called
  07-04 15:59:52.967 25476-27690/? D/tango-hal: tango-camera.cpp:disconnect():501 disconnect called
  07-04 15:59:52.967 25476-25902/? I/tango: tango_hal_device_wrapper.cc:187 HAL device wrapper calling stop.