Inserting line endings from kill ring

[jacksonludwig]

I'm not sure when this started, but when pasting from the kill ring (e.g. M-y), line endings are pasted into the buffer.

This is what I mean (top normal text, bottom after being pasted from kill ring):

Of course, I checked and disabling selectrum and pasting from the kill ring results in the correct behavior (no line ending characters).

I'm currently using emacs master with native comp enabled.

[minad]

Indeed, I can confirm this on Emacs 28. cc @clemera