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Fix: Removing an outer <template r-if> detaches nested conditional anchors - #102
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Summary
Removing an outer
<template r-if>detaches nested conditional anchors before deferred observer cleanup runs. Updating nested state in the same turn could then throwReference node is not a child of this parent.Changes
Skip conditional refreshes when either region anchor no longer belongs to its parent. This preserves deferred cleanup and allows the parent to remount with current state.
Add nine regression cases covering immediate and delayed updates, all
r-if/r-else-if/r-elsetransitions, observer cleanup, and remounting.