fix: 分享拷贝建设项目

web/building_saas/pm/js/pm_share.js

@@ -1124,6 +1124,9 @@ const pmShare = (function () {
         });
         $('#share-rename-confirm').click(function () {
             const newName = $('#share-rename-input').val().trim();
+            if (!newName) {
+                return;
+            }
             for(let project of projectQueryResult){
                 if(project.name === newName){
                     $('#share-rename-info').text(`已存在 “${newName}”`);