Strange behavior within transition-group

[ttodua]

Version

2.6.11

Reproduction link

https://jsfiddle.net/yrqt02kj/1/

Steps to reproduce

transition-group renders the component twice (and the second rendering is done without parsed "{{variable}}").
If we just remove transition-group parent at all, it works as expected and there is no duplicated content.

What is expected?

there should not be the duplicated content (with unrendered variable tag)

What is actually happening?

it shows the content twice

[posva]

Hi, thanks for your interest but Github issues are for bug reports and feature requests only. You can ask questions on the forum, the Discord server or StackOverflow.

---

You must but testt's template outside of #app so Vue doesn't use it

[ttodua]

Hi.
I've asked that on discord channel but got no response, I thought it was bug and opened here. ok, thanks , just your suggestion is not actually direct answer to the problem i described. moreover, it happens only within transition-group.