PVS-Studio warning V501 for MesaLib

static GLboolean
Parse_MaskedDstReg(....)
{
  ....
  else if (parseState->isStateProgram && token[0] == 'c' &&
           parseState->isStateProgram) {
  ....
}

This suspicious code was found in MesaLib project by PVS-Studio static code analyzer.
Warning message is:
V501 There are identical sub-expressions 'parseState->isStateProgram' to the left and to the right of the '&&' operator. nvvertparse.c 576

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/