silverstripe
diff --git a/‎client/dist/js/bundle.js
+1-1 b/‎client/dist/js/bundle.js
+1-1
diff --git a/‎client/src/components/TreeDropdownField/TreeDropdownField.js
+1-1 b/‎client/src/components/TreeDropdownField/TreeDropdownField.js
+1-1
@@ -604,7 +604,7 @@ class TreeDropdownField extends Component {
           type="button"
           className="treedropdownfield__option-button fill-width"
           onClick={handleNavigate}
-          onMouseDown={handleNavigate}
+          onKeyDown={(event) => this.handleKeyDown(event)}
           onTouchStart={handleNavigate}
         >
           <span className="treedropdownfield__option-count-icon font-icon-right-open-big" />
Original file line number	Diff line number	Diff line change
`@@ -604,7 +604,7 @@ class TreeDropdownField extends Component {`
`604`	`604`	`type="button"`
`605`	`605`	`className="treedropdownfield__option-button fill-width"`
`606`	`606`	`onClick={handleNavigate}`
`607`		`- onMouseDown={handleNavigate}`
	`607`	`+ onKeyDown={(event) => this.handleKeyDown(event)}`
`608`	`608`	`onTouchStart={handleNavigate}`
`609`	`609`	`>`
`610`	`610`	`<span className="treedropdownfield__option-count-icon font-icon-right-open-big" />`