Bug report

Bug description:

The new REPL in 3.13.0 crashes on pressing ctrl+Z twice at the end of a overflowing line, refer to the attachment

CPython versions tested on:

3.13

Operating systems tested on:

Windows

Linked PRs

• gh-126332: Fix pyrepl crash for double ctrl-z in line overflow #126650
• [3.13] gh-126332: Fix pyrepl crash for double ctrl-z in line overflow (GH-126650) #129154
• gh-126332: Add tests for _pyrepl.utils #129325
• [3.13] gh-126332: Add tests for _pyrepl.utils (GH-129325) #130414