Attribute [content={ true | false }] broke components with slots

[kachurun]

Help us to manage our issues by answering the following:

1. Describe your issue:
   When I add "content=true" attribute to child component with <slot/> inside Riot.js fails:
   https://codesandbox.io/s/riotjs-5-bug-template-forked-f1mdg?file=/my-tag.riot

But if I insert more than one child component it worked, but lost host tag:
https://codesandbox.io/s/riotjs-5-bug-template-forked-x5vv5?file=/my-tag.riot

2. Can you reproduce the issue?
   https://codesandbox.io/s/riotjs-5-bug-template-forked-f1mdg?file=/my-tag.riot
   https://codesandbox.io/s/riotjs-5-bug-template-forked-x5vv5?file=/my-tag.riot

3. On which browser/OS does the issue appear?

4. Which version of Riot does it affect?
   5.4.2

5. How would you tag this issue?

• Question
• Bug
• Discussion
• Feature request
• Tip
• Enhancement
• Performance

[GianlucaGuarini]

Fixed in Riot.js@5.4.3 thank you for reporting it