Adapt grid.mixin.ExportLatex.

static/plugin_dbui/src/grid/mixin/ExportLatex.js

@@ -96,7 +96,7 @@ Ext.define('Dbui.grid.mixin.ExportLatex', {
             var cells, cmd, div, nColumns, tdEls, row;
 
             // grouping row. It is represent as a latex multicolumn
-            if (trEl.hasCls("x-grid-wrap-row")) {
+            if (trEl.dom.className.length === 0) {
 
                 div = trEl.down(".x-grid-group-title");
                 if (div) {
@@ -107,7 +107,7 @@ Ext.define('Dbui.grid.mixin.ExportLatex', {
                 }
 
             // row with standard data cells. It includes summary row.
-            } else if (trEl.hasCls("x-grid-data-row") || trEl.hasCls("x-grid-row-summary")) {
+            } else if (trEl.hasCls("x-grid-row") || trEl.hasCls("x-grid-row-summary")) {
 
                 cells = [];
                 tdEls = trEl.select("td");