I think you’re missing the larger point here. It’s not about what treaty is signed but what is being done. Imagine taking a walk at night seeking shelter and stepping on one. Do you think this mine has intelligence and can differentiate about civilian or not?

Last I checked it doesn’t matter what weapon you use if you target civilians.

From the Geneva convention info page in UN.

“(…) many of the rules contained in these treaties have been considered as part of customary law and, as such, are binding on all States (and other parties to the conflict), whether or not States have ratified the treaties themselves. In addition, many rules of customary international law apply in both international and non-international armed conflict (…)”

So your munition treaty is really superseded by Geneva convention on treatment of civilians.