Fix placement of points in bar's side-by-side view

Fix no-group data input case.

lib/timeline/component/LineGraph.js

@@ -478,8 +478,11 @@ LineGraph.prototype._updateAllGroupData = function () {
             this._onRemoveGroups([groupId]);
           }
         } else {
-          var group = this.groupsData.get(groupId);
-          if (group === undefined) {
+          var group = undefined;
+          if (this.groupsData != undefined) {
+            group = this.groupsData.get(groupId);
+          }
+          if (group == undefined) {
             group = {id: groupId, content: this.options.defaultGroup + groupId};
           }
           this._updateGroup(group, groupId);

lib/timeline/component/graph2d_types/bar.js

@@ -120,7 +120,7 @@ Bargraph.draw = function (groupIds, processedGroupData, framework) {
     // draw points
     if (group.options.drawPoints.enabled === true) {
       let pointData = {
-        x:combinedData[i].x + drawData.offset,
+        x:combinedData[i].x,
         y:combinedData[i].y - heightOffset,
         groupId: combinedData[i].groupId,
         label: combinedData[i].label,