REPORT-45880 使用富文本恢复普通文本后文本格式失效

designer-realize/src/main/java/com/fr/grid/selection/CellSelection.java

@@ -573,6 +573,11 @@ public class CellSelection extends Selection {
                 for (int i = 0; i < removeElementList.size(); i++) {
                     CellElement element = removeElementList.get(i);
                     element.setValue(null);
+                    CellGUIAttr cellGUIAttr = element.getCellGUIAttr();
+                    cellGUIAttr.setShowAsDefault(true);
+                    cellGUIAttr.setShowAsHTML(false);
+                    cellGUIAttr.setShowAsDownload(false);
+                    cellGUIAttr.setShowAsImage(false);
                 }
                 break;