Subject: bug#50900: 27.2; Evaluating open-line with a negative argument changes the behavior of self-insert

From: Rodrigo Morales <[email-masked]>
Date: Wed, 29 Sep 2021 14:05:40 -0500

In order to reproduce this bug, I deleted my ~/.config/emacs/init.el
file and made sure that no other Emacs configuration file existed in
$HOME.

Steps to reproduce this bug:

1. Evaluate (open-line -1)
2. Insert text in any buffer

You will see that whenever a character is inserted, the point is moved
to the beginning of the line.