[3.13] gh-126332: Fix pyrepl crash for double ctrl-z in line overflow (GH-126650) (#129154)

gh-126332: Fix pyrepl crash for double ctrl-z in line overflow (GH-126650)

(cherry picked from commit d147e5e52cdb90496ae5fe85b3263cdfa9407a28)

Co-authored-by: Pieter Eendebak <pieter.eendebak@gmail.com>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>