PVS-Studio warning V501 for TortoiseSVN

static void ColouriseA68kDoc (....)
{
  if (((sc.state == SCE_A68K_NUMBER_DEC) && isdigit(sc.ch))
      ....
      || ((sc.state == SCE_A68K_MACRO_ARG) && isdigit(sc.ch))
      || ((sc.state == SCE_A68K_MACRO_ARG) && isdigit(sc.ch))
      ....
}

This suspicious code was found in TortoiseSVN project by PVS-Studio static code analyzer.
Warning message is:
V501 There are identical sub-expressions '((sc.state == 11) && isdigit(sc.ch))' to the left and to the right of the '||' operator. lexa68k.cxx 160

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/