Lookup tooltip only if map has size; get from map not getTooltip

Author: stokesman

lib/js/tt.js

@@ -123,9 +123,9 @@ window.tsfTT = function () {
 		},
 		get: ( element ) => {
 			if ( ! _activeTooltipElements.tooltip ) {
-				const tooltip = getTooltip( element );
-				if ( ! tooltip ) return {};
+				if ( ttMap.size < 1 ) return {};
 
+				const tooltip = ttMap.get( element );
 				Object.assign( _activeTooltipElements, {
 					tooltip,
 					arrow: tooltip.querySelector( ttSelectors.arrow ),