Cntrl shft K opens the binder pane

I have the binder closed, and am editing a text file.
I select some text, and do cntrl+shift+K to split the text and use the highlighted text as the new title.
This works as expected, but also it opens the binder pane - which I don’t really want.
Is this a bug or a feature?

I don’t think it is a bug, per se, it is probably just a case of the code for standard split being used again for the titled split without being properly altered. I’ve added it to the list.