Empty Block display is not shown even if Attachment display (attached to this block) is not empty

Thanks. What about needless markup in attachment display if it has no data?

I noticed some strange behavior. Considering that the view/display A is constructed like in clause 3 & the view/display B is constructed like in clause 4 from my previous message, the following is observed:
1. If the view has block display (A) with attachment display (B) & the block display is placed in some area, the attachment display (B) contains needless markup if it has no data & this display is not considered empty (see the code below).
2. If the view has two block displays (A & B) & these displays are placed in some area, the block display B contains needless markup if it is empty & is not considered empty.
3. If there're two views (A & B) each with one block display & they are printed using views_embed_view() the view B contains needless markup & is not considered empty.

So it seems it has something to do with the way these views/displays "B" were constructed:
4. To the attachment display I added Node: Nid as argument overriding default value and again specifying that Node ID from URL should be provided as default argument. Overriding defaults added some fields specifying Node reference as relationship for them. Attached this display to block display. So this display should show all nodes/fields of the nodes that the current node refers to.

All in all right now it seems there's no way to show some title for two views/displays in case at least one of them is not empty (this title in the following example is shown always).

 //in template.php
function theme_embed_view($viewname,$display = NULL) {
	$args = func_get_args();
		array_shift($args); // remove $name
		if (count($args)) {
			array_shift($args); // remove $display_id
		}

	$view = views_get_view($viewname);
	$output = $view->preview($display,$args);
	// At least in $view->result is the result.
	if ($view->result) {
		return $output;
	}
}

 //in node-msg.tpl.php
	$view_name = 'msg_related';
	if ( (theme_embed_view( $view_name, 'block_1' ) != '') || (theme_embed_view( $view_name, 'attachment_1' ) != '') ) : //always true because of (theme_embed_view( $view_name, 'attachment_1' ) != '') 

<h4>Related:</h4>

	print views_embed_view($view_name, 'block_1' );
	endif; 

The work around for this is to ensure that you have something (even if it is just a blank space) in the empty text.
Forgot to add that this workaround doesn't help much, because if I insert blank space into Empty text item in the view that is constructed like in clauses 3,4 from my 1st message, this view appears on every node page that exists if at least one reference from some node to the other is present, also this view has the markup of the Attachment section up until <div class="item-list"><ul><li> but this section has no data.

The only filter I have in the view is Node: Published Yes and I'm showing only Date & Title fields (both are present in every node).