How to restore M-^?

[scottjones]

Expected behavior

I am used to M-^ effectively taking me to the beginning of my line and then pressing backspace to eliminate the carriage return and leaving a single space between the previous line and my new line. I have all kinds of muscle memory to use this with rectangle commands. Is there a way to restore this?

Actual behavior

When using Prelude, M-^ wants to kill my current buffer, showing the text below in the mini-buffer area. Buffer test.txt HAS BEEN EDITED. Kill? (y or n)

Steps to reproduce the problem

#. Install prelude.
#. Begin editing a new buffer and create something like the following.

    1,
    2,
    3

#. Position your cursor on the line with the 3 and then enter M-^ and see that it attempts to kill your buffer.

Environment & Version information

Emacs version

28.2 (9.0)

Operating system

MacOS Ventura (13.3.1 (a)).

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