$mol_view: prevent race condition for mol_theme between host and plugin.

$mol_plugin: return static attrs

dom/render/attributes/attributes.ts

@@ -9,7 +9,11 @@ namespace $ {
 
 			let val = attrs[ name ] as any
 
-			if( val === null || val === false ) {
+			if( val === undefined ) {
+
+				continue
+
+			} if( val === null || val === false ) {
 
 				if( !el.hasAttribute( name ) ) continue
 

plugin/plugin.ts

@@ -3,12 +3,7 @@ namespace $ {
 	export class $mol_plugin extends $mol_view {
 
 		override dom_node_external( next? : Element ) {
-			const host = $mol_owning_get<typeof this, $mol_wire_fiber<$mol_view, any, any>>( this )!.host!
-			return next ?? host.dom_node()
-		}
-
-		override attr_static() : { [ key : string ] : string|number|boolean } {
-			return {}
+			return next ?? $mol_owning_get<typeof this, $mol_wire_fiber<$mol_view, any, any>>( this )!.host!.dom_node()
 		}
 
 		override render() {

view/view/view.ts

@@ -262,7 +262,6 @@ namespace $ {
 
 			const attr = this.attr()
 			const style = this.style()
-			const fields = this.field()
 
 			$mol_dom_render_attributes( node , attr )
 			$mol_dom_render_styles( node , style )
@@ -386,7 +385,7 @@ namespace $ {
 
 		attr() {
 			return {
-				mol_theme: this.theme(),
+				mol_theme: this.theme() || undefined,
 			} as {}
 		}