PVS-Studio warning V512 for Doom3

aseMesh_t *currentMesh;

static void ASE_KeyGEOMOBJECT( const char *token )
{
  ...
  ase.currentMesh = &ase.currentObject->mesh;
  memset( ase.currentMesh, 0, sizeof( ase.currentMesh ) );
  ...
}

This is what should have been written here:
memset( ase.currentMesh, 0, sizeof( *ase.currentMesh ) );

This suspicious code was found in Doom3 project by PVS-Studio static code analyzer.
Warning message is:
V512 A call of the 'memset' function will lead to underflow of the buffer 'ase.currentMesh'. DoomDLL model_ase.cpp 731

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/