Losing lane height in Calendar after rebuild of CalendarView

[michaelaveva]

Hi,

After rebuilding the timeline view in a calendar the height of all lanes are reset to the default lane height.
I recently updated my SmartGWT version (see below) and in the old version the lane heights were retained.
Is there currently a way to keep the lane heights across rebuilds?

Context:
Old SmartGWT Version: v12.1p_2021-02-05/LGPL Development Only (built 2021-02-05)
New SmartGWT Version: v12.1p_2021-06-03/LGPL Development Only (built 2021-06-03)
GWT Version: 2.9.0
Tested in Super Dev mode and compiled mode.
Behavior is the same across the following browsers:
Chrome - Latest version
Edge - Latest version
IE - Latest version

public class LMSEntryPoint extends SmartGwtEntryPoint
{
   @Override
   public void onModuleLoad()
   {
      Calendar calendar = new Timeline();
      Lane[] lanes = new Lane[1];
      lanes[0] = new Lane("a", "A");
      lanes[0].setHeight(10);
      calendar.setLanes(lanes);
      calendar.draw();
      calendar.getLane("a").setHeight(10);
      calendar.getSelectedView().rebuild();
   }
}

Before the rebuild the height is 10, after the rebuild the height is 60 (default cell height).

Note:
In the old version the lane height was set by the following function in ISC_Calendar.js (called by isc_TimelineView_setLanes, which in turn is called by isc_TimelineView__rebuild):

isc_TimelineView_getLaneHeight(_1) {
	if (_1 == null)
		return;
	if (isc.isA.Number(_1))
		_1 = this.getRecord(_1);
	else if (isc.isA.String(_1))
		_1 = this.getLane(_1);
	return (_1 && _1.height) || this.cellHeight
}

In the new version the function is:

function isc_TimelineView_getLaneHeight(_1) {
	var _2 = isc.isA.String(_1) ? _1 : (isc.isAn.Object(_1) ? _1.name : null);
	var _3 = this.cellHeight;
	if (!_2) {
		if (isc.isA.Number(_1))
			_1 = this.getRecord(_1);
		if (_1) {
			_2 = _1.name;
			if (_1.height != null)
				_3 = _1.height;
			_1 = null
		}
	}
	var _4 = this.laneHeightCache[_2];
	if (_4 == null) {
		this.laneHeightCache[_2] = _3
	}
	return this.laneHeightCache[_2]
}

So the lane height doesn't end up in the laneHeightCache (because setLanes gives it an object argument).
As far as I could see the only place where the laneHeightCache entries are set is in isc_TimelineView_getLaneHeight, so I am not sure how to keep the heights cached.

[Isomorphic]

This has been fixed for builds dated June 9 and later.