QueryBuilder.updateRuleFilter is deleting "user" data

Hi,
we currently faced an issue were the data from our custom plugins were deleted by the querybuilder core system.
From my understanding the data associated with a rule is meant to be managed by external components like plugins and should not be deleted by the querybuilder (as long as the rule is not deleted or similar).
But I may misunderstand the intent.

The situation comes from:
In QueryBuilder.prototype.updateRuleFilter
https://github.com/mistic100/jQuery-QueryBuilder/blob/dev/src/core.js#L756

// clear rule data if the filter changed
if (previousFilter && rule.filter && previousFilter.id !== rule.filter.id) {
        rule.data = undefined;
}

As far as I can tell this is the only place where the data (as "user" data) is deleted.
Maybe the intent was to clear the rule value and it was a typo ?

As a (temporary?) workaround I am overriding the updateRuleFilter prototype locally to not have this behavior.

Start in src/core.js at QueryBuilder.prototype.updateRuleFilter, especially the block that clears rule.data when the filter changes. Reproduce the behavior with custom plugin data and inspect whether rule data is intended to survive filter changes. Done means the issue's intended data-preservation behavior is confirmed and covered by an appropriate regression check.