Version

3.2.31

Reproduction link

sfc.vuejs.org/

Steps to reproduce

Click on Update child-v-model button

What is expected?

Components with v-model="childVModel" re-renders with new value

What is actually happening?

Nothing happens

If first click on Update child-v-model button no warning.

If (need refresh page) click on Update root-v-model button has warning:

Maximum recursive updates exceeded in component <Tree>. This means you have a reactive effect that is mutating its own dependencies and thus recursively triggering itself. Possible sources include component template, render function, updated hook or watcher source function.

You need to call ctx.slots.default() wihthin the render function so that dependencies can be properly collected.

playground