Function LineGetter.historyFilter
Override this if you don't want all lines added to the history. You can return null to not add it at all, or you can transform it.
string historyFilter(
string candidate
);
History
Prior to October 12, 2021, it always committed all candidates. After that, it no longer commits in F9/ctrl+enter "run and maintain buffer" operations. This is tested with the [lastLineWasRetained] method.
The idea is those are temporary experiments and need not clog history until it is complete.