Forward Declaration silently ignores buffer_reference_align

[spencer-lunarg]

There should be a warning or ban (and 100% spec clarification) that buffer_reference_align is ignored when doing forward declaration

#version 450
#extension GL_EXT_buffer_reference : enable

layout(buffer_reference, buffer_reference_align=4) buffer StructA {
    vec4 x;
};

layout(buffer_reference, buffer_reference_align=4) buffer StructB;
layout(buffer_reference) buffer StructB {
    vec4 x;
};

layout(set = 0, binding = 0) buffer foo {
    StructA ptrA;
    StructB ptrB;
};

void main() {
    ptrA.x = vec4(0); // Aligned 4
    ptrB.x = vec4(0); // Aligned 16
}