Basic Persistent groups and 1.3.0RC16
Removing Persistent Groups
If you need to stop the persistent group copy function, just remove the Persistent Group plugin, the plugin uninstall code will also remove the sql trigger stopping the update on insert action. Removing the plugin will not remove the persistent group or its members or remote the host template. You can turn back on persistent groups by simply reinstalling the plugin, which will recreate the sql trigger and restart the persistent group function.
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