Pull request #3849: REPORT-50204 未保存点击预览，提示保存模板的弹窗，点击取消后再弹窗

Merge in DESIGN/design from ~HADES/design:release/10.0 to release/10.0

* commit '698eac4dc9a8f9a15bf116e11af5516ab9b1b95f':
  REPORT-50204 未保存点击预览，提示保存模板的弹窗，点击取消后再弹窗

designer-base/src/main/java/com/fr/design/actions/file/WebPreviewUtils.java

@@ -86,6 +86,8 @@ public final class WebPreviewUtils {
                     if (!jt.saveAsTemplate()) {
                         return;
                     }
+                } else {
+                    return;
                 }
                 currentTemplate = jt.getEditingFILE();
             }