PVS-Studio warning V501 for Clang

StmtResult
Sema::ActOnDoStmt(....)
{
  ...
  ExprResult CondResult = CheckBooleanCondition(Cond, DoLoc);
  if (CondResult.isInvalid() || CondResult.isInvalid())
    return StmtError();
  ...
}

This suspicious code was found in Clang project by PVS-Studio static code analyzer.
Warning message is:
V501 There are identical sub-expressions 'CondResult.isInvalid()' to the left and to the right of the '||' operator. clangSema semastmt.cpp 899

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