is when there are lots of workers 'WORKING' so as to avoid them falling over
each other.  The 'WORKING' state only exists in the middle of a large run.
When the last worker dies, the state is 'ALL_CLAIMED' so the sync on death
will happen properly.  As the last pile of workers die they will all do
a synch, but that's OK since the system needs to be properly synched when
the last one dies since there won't be anybody left to do it.
Also added 10 minute check for if already 'SYNCHING' to deal with case if
worker dies in the middle of 'SYNCHING'.