PVS-Studio warning V519 for Wolf

void R_Register( void ) {
  ...
  r_shadows = ri.Cvar_Get( "cg_shadows", "1", 0 );
  r_shadows = ri.Cvar_Get( "cg_shadows", "1", 0 );
  ...
}

This suspicious code was found in Wolf project by PVS-Studio static code analyzer.
Warning message is:
V519 The 'r_shadows' object is assigned values twice successively. Perhaps this is a mistake. renderer tr_init.c 1135

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/