Double quest scan

[bschultz]

Seems like two devices getting the same quest coordinate:

[Controller] [iPhoneSE6] Received control request: get_job
[Controller] [iPhone6AW1] Received control request: get_job
[AutoInstanceController] [iPhoneSE6] Delaying by 0s
[Controller] [iPhoneSE6] Sending scan_quest job to 50.541088, 7.086489
[AutoInstanceController] [iPhone6AW1] Delaying by 0s
[Controller] [iPhone6AW1] Sending scan_quest job to 50.541088, 7.086489

Plus quest at this stop was/is already scanned but it tries to scan it over and over.