Shift + select when multirange is active doesn't clear

I assume that the third click is made without a Shift key pressed. In the screencast, there is a slight delay before the additional range selection appears which suggests an update of the Scheduler is invoked and the additional selection appears only during the update.

Unfortunately, I’m not able to reproduce the issue. Could you please post your config?

I Think the main problem is that when you shift click and don’t drag the area, onTimeRangeSelected is fired on mouse up:

ref={schedulerRef}
allowEventOverlap={true}
allowMultiRange={true}
allowMultiMove={true}
multiMoveVerticalMode="All"
eventHeight={25}
headerHeight={20}
allowMultiSelect={true}
rectangleSelectHandling="Enabled"
rectangleSelectMode="Free"
bubble={bubble}
drawBlankCells={false}
rowHeaderWidthAutoFit={false}
rowHeaderScrolling={true}
rowHeaderWidth={rowHeaderWidth}
rowRightClickHandling="ContextMenu"
doubleClickTimeout={0}
cellWidthMin={40}
eventClickHandling="Select"
eventDoubleClickHandling="CallBack"
eventMoveHandling="Update"
eventResizeHandling="Update"
moveBy="Full"
timeRangeDoubleClickHandling="Enabled"
floatingTimeHeaders={true}
scale={scale}
separators={seperators}
timeHeaders={timeHeaders}
rowHeaderColumns={rowHeaderColumns}
useEventBoxes="Never"
heightSpec="Parent100Pct"
cellWidthSpec="Auto"
cellWidth={38}
eventMinWidth={19}
dynamicLoading={true}
dynamicEventRendering={isScreenshotTestMode() ? "Disabled" : "Progressive"}
scrollDelayDynamic={0}
scrollDelayEvents={0}
dynamicEventRenderingMargin={10000}
onScroll={onScroll}
onEventSelected={onEventSelected}
onRectangleSelect={onRectangleSelect}
onBeforeCellRender={onBeforeCellRender}
onBeforeEventExport={onBeforeEventExport}
onBeforeTimeHeaderRender={onBeforeTimeHeaderRender}
onBeforeTimeHeaderExport={onBeforeTimeHeaderExport}
onBeforeRowHeaderRender={onBeforeRowHeaderRender}
onBeforeRowHeaderExport={onBeforeRowHeaderExport}
onEventMove={onEventMove}
onEventResize={onEventResize}
onEventDoubleClick={onEventDoubleClicked}
onEventRightClick={onEventRightClick}
onEventClick={onEventClick}
onEventFilter={onEventFilter}
onRowClick={onRowClick}
onRowFilter={onRowFilter}
onTimeHeaderClicked={onTimeHeaderClick}
timeRangeRightClickHandling="ContextMenu"
onTimeRangeRightClick={onTimeRangeRightClick}
onTimeRangeDoubleClicked={onTimeRangeDoubleClick}
onTimeRangeSelecting={onTimeRangeSelecting}
onTimeRangeSelected={onTimeRangeSelected}
timeRangeSelectedHandling="Enabled"
days={props.days}
locale={props.locale}
startDate={props.startDate}
resources={resourceForCal}
events={adaptedEvents}
treeEnabled={props.treeEnabled}
treeIndent={5}