Save space in collapsed header for a fork

When the header of a page (containing repo description, clone info and buttons) is collapsed to save screen height, we get one line with the names of the user and the repo on the left and buttons on the right. However, if the repo is a fork of another repo, the box with this info will cause the buttons to be on another line. I’d like to have only one line in collapsed mode.

Sorry if I haven’t found a good title for this

Regards