cubicweb-worker #4478435 fix worker recreation [resolved]

When a worker dies, it is supposed to be recreated.
Because of an indentation mistake, it is not really.

prioritynormal
typebug
done in3.0.4
load0.100
load left0.000
closed by#8c42f3b8e2c4 [workutils] do session commit() for the worker creation case
patch[workutils] do session commit() for the worker creation case [applied]