A bug in Chrome with SHIFT+ENTER and bold/italic formating

scenario is simple:
- go to the ckeditor 4 demo
- delete all content
- press enter to start a new paragraph
- switch to 'bold' and start typing a few words
- click SHIFT+ENTER 
- click the 'bold' again - u will see that your first line will not be bold anymore.

this is not a consistent behavior - if u do the same without moving to a new line, the text you already typed remains bold - and only new text from here on will not be bold.

For me this is even problematic - as I am working with ENTERMODE=BR - so the entire text behaves like this. 

Can anyone help out here please??

This only happens on Chrome - not on IE. 

thanks