Directory Items regenerate after playing Playable item

Since I upgraded to Krypton, the LiveLeak plugin (which I have forked and resurrected) unnecessarily regenerates a Directory of ListItems after playing a Playable video. This means it, yet again, fetches and parses the very same pages from the website that it has already processed. This is impolite netizenship.

Kodi v16 did not do that.

I have looked through the Docs and tried everything I can think of to prevent this redundancy: from declaring ListItem.setContentLookup(False) to actually specifying the default values to xbmcplugin.endOfDirectory to ensure ‘cacheToDisc’ is enabled. Nothing I have tried corrects this issue.

(And I’m fairly sure it’s not the new skin. I immediately switched back to Confluence because Estuary seems to have lost its “Home” and “Back” icons.)

How can I force Krypton to simply re-use the list of Playable ListItems that have already been added to the current Directory?