Named default slot not working with multiple conditional elements

[martinlundin]

Version

2.6.13

Reproduction link

https://codesandbox.io/s/boring-paper-gxdk3?file=/src/App.vue

Steps to reproduce

Open repro, open App.vue.
See that what is inside of the default template is not rendered. Remove the #default from the <template> tag and it works.

What is expected?

List should render. In vue 2.6.12 it did.

What is actually happening?

List is not rendered.

[posva]

Already fixed. Please check existing issues first

[martinlundin]

Okay great, could not find any, can you link it?

[jelle-eastground]

Okay great, could not find any, can you link it?

#12102 , #12104 and #12107