Bug Report: Unexpected Exit When Scrolling at EOF with Pipes in v678

[LangLangBart]

Issue Description

When reading from a pipe and repeatedly pressing space at EOF, less exits with
status code 2 if both --quit-on-intr and --quiet options are used and the
displayed content does not fit in one screen.

Steps to Reproduce

1. Run this docker command (alpine:edge uses less version 678-r0¹;
   alpine:latest uses 668)

docker run --interactive --tty --rm \
  -e LESS='--quit-on-intr --quiet' \
  alpine:edge sh -c 'apk add less;less --version; seq 500 | less'

2. Scroll to end of file using space key
3. Continue holding space key at EOF

Observed Behavior

less exits with status code 2 after several space key presses at EOF.

Expected Behavior

less should remain at EOF without exiting, as in previous versions.

Regression Information

• First appeared in v678
• Bisected to commit: de3e84f

Footnotes

1. https://pkgs.alpinelinux.org/packages ↩

[gwsw]

Fixed in 4befc21.