Clearing space selection after listing

editor/js/interactions.js

@@ -18,6 +18,7 @@ export function initInteractions() {
 function loadSpacesList() {
     // Fill space dropdown
     var selectContainer = jQuery("#space-id-select");
+    selectContainer.empty();
     listAllSpaces().then((spaces) => {
         Object.keys(spaces).forEach(space_id => {
             var selectedTxt = "";