PVS-Studio warning V590 for tesseract-ocr

bool TessBaseAPI::AdaptToWordStr(
  PageSegMode mode, const char* wordstr)
{
  ....
  while (wordstr[w] != '\0' && wordstr[w] == ' ')
    ++w;
  ....
}

This suspicious code was found in tesseract-ocr project by PVS-Studio static code analyzer.
Warning message is:
V590 Consider inspecting the 'wordstr[w] != '\0' && wordstr[w] == ' '' expression. The expression is excessive or contains a misprint. libtesseract303 baseapi.cpp 1742

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