cubicweb-timesheet #2422713 unregister workorder hook forcing todo=0 on status change [validation pending]

I fail to see a valid reason to this

priorityimportant
typebug
done in0.8.1
load0.100
load left0.000
closed by#2ff4aea9cb15 why should we unregister workorder hook forcing todo=0 on workorder status change? Closes #2422713