优化 table 单选框在特殊场景下的选中逻辑

src/modules/table.js

@@ -1593,16 +1593,12 @@ layui.define(['lay', 'laytpl', 'laypage', 'form', 'util'], function(exports){
       radio: 'layTableRadio',
       checkbox: 'layTableCheckbox'
     }[opts.type] || 'checkbox') +'"]:not(:disabled)');
-
     var checkedSameElem = checkedElem.last();
-    if (opts.type === 'radio' && checkedSameElem.parents(ELEM_FIXR)[0]) {
-      if (checkedSameElem.parents(ELEM_FIXR).hasClass('layui-hide')) {
-        checkedSameElem = checkedElem.first();
-      }
-      checkedSameElem.prop('checked', true);
-    } else {
-      checkedElem.prop('checked', getChecked(checkedSameElem.prop('checked')));
-    }
+    var fixRElem = checkedSameElem.closest(ELEM_FIXR);
+
+    ( opts.type === 'radio' && fixRElem.hasClass(HIDE)
+      ?  checkedElem.first()
+    : checkedElem ).prop('checked', getChecked(checkedSameElem.prop('checked')));
 
     that.syncCheckAll();
     that.renderForm(opts.type);