Content duplicated if i have a macro (toc, id..) in an html macro

Content duplicated if i have a macro (toc, id..) in an html macro

If i have this content :

{{html wiki="true"}}

= Hello title 1 =

{{toc start="2"/}}

= Hello title 2 =

{{/html}}

And if i edit and save the page in WYSIWYG, my content is duplicated.
The generated code is :

{{html wiki="true"}}

= Hello title 1 =

{{toc start="2"/}}

= Hello title 2 =

{{/html}}

{{toc start="2"/}}

= Hello title 2 =

I tested it with the Toc macro but also with the ID macro, the result is the same.