[3.0] Image::_get_pixelb bugged?

[CharlesWoodhill]

Operating system or device - Godot version:
N/A - current master

Issue description:
Possible bug in Image::_get_pixelb:

void Image::_get_pixelb(int p_x, int p_y, uint32_t p_pixelsize, const uint8_t *p_src, uint8_t *p_dst) {

	uint32_t ofs = (p_y * width + p_x) * p_pixelsize;

	for (uint32_t i = 0; i < p_pixelsize; i++) {
		p_dst[ofs] = p_src[ofs + i]; // <<<<<<<<<<<<
	}
}

i think:
p_dst[ofs] = p_src[ofs + i];
should be:
p_dst[i] = p_src[ofs + i];

Steps to reproduce:
N/A

Link to minimal example project:
why i need that private member?:
https://godotengine.org/qa/13482