Allow become_activating transitions in active state
Allow become_activating transitions in active state

This apparently happens:

 automat._core.NoTransition: no transition for MethodicalInput(method=<function become_activating at 0x7f00ee31f758>) in MethodicalState(method=<function active at 0x7f00ee31af50>)

mineo/sagbescheid,mineo/sagbescheid