MSX FUSION-C, Talking about bugs, errors, mistakes

It seems that the MSX DOS crt's (both simple and advanced) do not initialize Global Variables, right?

I believe this should be documented, it would have saved me quite a few hours trying to understand why my code was failing, when a static table used for several functions wasn't being initialized and that was the reason.

Hi ...
I'm sorry for bothering you againg but I'm working with fusion and It does some weird things...
I define two tiles in my code, setting the pattern and the colour. The problem is ... Why in the world the are painted if I don't write the code to paint them?
An example will say it more clearly ...

#include "fusion-c/header/msx_fusion.h"
#include "fusion-c/header/vdp_graph1.h"

void main(void) 
{
	Screen(2);
	SetColors(15,1,1);
	Cls();

	Vpoke(4096,255);
	Vpoke(4097,255);
	Vpoke(4098,255);
	Vpoke(4099,255);
	Vpoke(4100,255);
	Vpoke(4101,255);
	Vpoke(4102,255);
	Vpoke(4103,255);

	Vpoke(4104,42);
	Vpoke(4105,85);
	Vpoke(4106,170);
	Vpoke(4107,85);
	Vpoke(4108,255);
	Vpoke(4109,255);
	Vpoke(4110,255);
	Vpoke(4111,255);
	
	Vpoke(12288,96);
	Vpoke(12289,96);
	Vpoke(12290,96);
	Vpoke(12291,96);
	Vpoke(12292,96);
	Vpoke(12293,96);
	Vpoke(12294,96);
	Vpoke(12295,96);

	Vpoke(12296,96);
	Vpoke(12297,96);
	Vpoke(12298,96);
	Vpoke(12299,96);
	Vpoke(12300,96);
	Vpoke(12301,96);
	Vpoke(12302,96);
	Vpoke(12303,96);

//	Vpoke(6784,1);
//	Vpoke(6816,0);

	for(;;){}
}

If you try the code you'll see the tiles apearing but I don't want them to apear (I want them to apear in the position of the commented code). It makes no sense.

As always, thank you guys.

Thanks... and I'm sorry for asking a concept question. For me It makes no sense... If It is like that I'll adapt. Sorry