PyPower DC OPF outputs voltages and reactive power

[senzhanopt]

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Issue

With PyPower DC OPF, net.res_bus shows voltage magnitudes and reactive power, which is strange.
vm_pu va_degree p_mw q_mvar lam_p lam_q
0 1.025000 0.000000 63.000000 -21.872152 -1.435712e-23 0.0
1 1.025801 -144.921484 0.042190 0.016670 -6.164139e-01 0.0
2 1.034286 -144.604056 0.000000 0.000000 -6.164140e-01 0.0
3 1.027263 -144.865541 -0.414323 0.020770 -6.164139e-01 0.0
4 1.028717 -144.809878 -0.432963 0.013400 -6.164139e-01 0.0
5 1.029044 -144.797365 -0.400133 0.024710 -6.164139e-01 0.0

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[rbolgaryn]

this must be an artifact from the AC power flow calculation