Allow Parameterization of the Constant Value in the Decider Combinators Output

I know this just got added in the latest experimental build, so possible this is already in the pipeline, but I wanted to bring it up.

After the recent patch we can now specify a value for the signal being output by ...

Hi, I can confirm that the same thing is happening to me...I tried to setup completely automatic trains using interrupts and this bug ruins it.

I've found a temporary workaround for those interested: setup a dummy station that can't be reached, add it as the only train stop and add interrupt for ...