[boskid][2.0.23] Selector combinator introduces meaningless blueprint parameter

[gyorokpeter]

Place a selector combinator and set it to "Quality transfer" mode. Make a blueprint of the combinator and go into blueprint parameterization.

Actual behavior: a parameter shows up with the value of zero and hovering over it provides no explanation other than "in <selector combinator>"

Expected behavior: either the tooltip explains what the parameter is for (e.g. "recipe", "request" etc. for other entities that have that kind of property), or the parameter does not appear at all, seeing that there is nothing in the settings of the combinator that has the number zero.

NOTE: the same lack of explanation also applies to the signals used for the "Select from signal" and "Output signal" boxes, but at least it's easy to guess what those are by setting those signals to something unique.

[boskid]

Thanks for the report. For 2.0.24 i made parametrization of selector combinator only propose those variables that are relevant in selected mode.