Popup is blank when command overrides `this-command`

[LemonBreezes]

As an example, evil-scroll-down overrides this-command with next-line so the help popup is blank. If repeat-help-auto is set to t however, this does not happen.

Potential solution: Use real-last-command instead of real-last-command. EDIT: This has to be done without actually setting this-command to real-last-command, as that will have unwanted side-effects.