BR tag being moved outside SPAN after rendering or editor.getData()

Question

I'm using ckeditor 4.9 after editing when rendering/refresh the editor it is moving the '<br>' tag.

Actual Code:

"<p><span style="font-size: 22px;"><b>This is&nbsp;Heading<br><br></b></span><br>sd<br>f<br>sdf<br>sd<br>fsfds s sd f sd f sdf</p>"

result: editor.getData();

"<p><span style="font-size: 22px;"><b>This is&nbsp;Heading</b></span><br />
<br />
<br />
sd<br />
f<br />
sdf<br />
sd<br />
fsfds s sd f sd f sdf</p>