added failing test for select_subnet with switch results

[rbolgaryn]

No description provided.

[vogt31337]

Looks good @rbolgaryn, can you resolve the current conflicts and then we can accept it.

[rbolgaryn]

Looks good @rbolgaryn, can you resolve the current conflicts and then we can accept it.

fixed the conflicts

[rbolgaryn]

# TODO: drop switches from the full grid that are not relevant

sw_to_drop = list(set(net_cut.res_switch.index) - set(net_cut.switch.index))
net_cut.res_switch.drop(sw_to_drop, inplace=True)
missing = list(set(net_cut.switch.index) - set(net_cut.res_switch.index))
for i in missing:
    net_cut.res_switch.loc[i, ["pf_closed", "pf_in_service"]] = True, True
net_cut.res_switch = net_cut.res_switch.loc[net_cut.switch.index]

# TODO: drop controllers for transformers in the full grid that are not relevant
for i in net_cut.controller.index.values:
    c = net_cut.controller.at[i, "object"]
    if isinstance(c, pp.control.TrafoController):
        if c.trafotype=="2W" and c.tid not in net_cut.trafo.index.values:
            net_cut.controller.drop([i], inplace=True)
        elif c.trafotype=="3W" and c.tid not in net_cut.trafo3w.index.values:
            net_cut.controller.drop([i], inplace=True)