bug#2375: 23.0.90; ^ in gnus summary buffer does not work in the nextstep build

[Stefan Monnier]

>> What happens after the patch below?
> The patch makes "^" bindings work in Gnus. Thanks!

Now I didn't expect that.  I guess that's good, tho.
But does the ^ character still behave properly as a dead-key in normal
editing buffers?

>> It's not intended to fix #1453.
> Yes, there's still a warning issued about the current buffer being
> read-only.

That's expected yes.


        Stefan