IPython 9.17.0 breaks %edit magic from IPykernel #15380

Due to the new, lazy way magics are loaded here, it's no longer possible for other projects to override core IPython magics. That's because core magics are loaded on demand whereas other magics are loaded at init time of their respective shells.

I'm trying to come up with a PR for this problem, but I wanted to bring it to your attention so a fix could be included in a possible 9.17.1.