PVS-Studio warning V517 for WebRTC

sipMethod_t
sippmh_get_method_code (const char *method)
{
  ....
  else if (strcmp(method, SIP_METHOD_INFO) == 0)     <<<<====
    ret = sipMethodInfo;
  else if (strcmp(method, SIP_METHOD_PUBLISH) == 0)
    ret = sipMethodPublish;
  else if (strcmp(method, SIP_METHOD_MESSAGE) == 0)
    ret = sipMethodMessage;
  else if (strcmp(method, SIP_METHOD_INFO) == 0)     <<<<====
    ret = sipMethodInfo;
  ....
}

This suspicious code was found in WebRTC project by PVS-Studio static code analyzer.
Warning message is:
V517 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 196, 202. ccsip_pmh.c 196

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