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Splits are ConfigFilter
plugins. The plugin deriver reads from the active configuration including configuration overrides to determine the splits active state. So far so good. However, the plugin definitions are then cached. This means when overriding the state or the weight of the split configuration the cache has to be cleared.
This is usually not a problem but it should be documented so that developers know that they have to clear caches when changing a splits active state in settings.php.
Comments
Comment #2
bircherWhen a split entity is saves this cache is cleared, so that should take care of most of the issues when simply creating new splits or editing them.
Caches still need to be manually cleared when manually overriding the split configuration.
Please feel free to contribute also to the documentation page.