How can I cancel auto closing tags in TinyMce?

TinyMce by default try to close html tags in rawHTML editor mode.

For example:

<p>sample text<strong>text</p>

automaticaly modified to

<p>sample text<strong>text开发者_运维知识库</strong></p>

How can I cancel this functionality?

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This is not the fault of tinymce. What you have here is non-valid html so your browser will try to make it valid adding a closing strong tag.