PVS-Studio warning V668 for tesseract-ocr

void SetLabel(char_32 label) {
  if (label32_ != NULL) {
    delete []label32_;
  }
  label32_ = new char_32[2];
  if (label32_ != NULL) {
    label32_[0] = label;
    label32_[1] = 0;
  }
}

This suspicious code was found in tesseract-ocr project by PVS-Studio static code analyzer.
Warning message is:
V668 There is no sense in testing the 'label32_' pointer against null, as the memory was allocated using the 'new' operator. The exception will be generated in the case of memory allocation error. libtesseract303 char_samp.h 73

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/