For a related bug, you can also still double-click on the divider and have the column auto-size. I think this can be fixed by moving "this.mainHd.on("dblclick", this.handleSplitDblClick, this, {delegate: "."+this.splitClass});" and "this.lockedHd.on("dblclick", this.handleSplitDblClick, this, {delegate: "."+this.splitClass});" in GridView.js around line 1230 to inside "if(this.grid.enableColumnResize !== false){".