BUG: fix array conversion from Arrow for slided array
Closes #38525
lgtm, needs a whatsnew note bug fix (ok for 1.2 or 1.3) Yeah, I didn't yet add a whatsnew because we need to decide which version to target. Normally, plain bug fixes should go in 1.3 right now, but since this is actually causing a silent data corruption, it might be worth putting in 1.2 1.2 sounds good to me thanks @jorisvandenbossche  @meeseeksdev backport 1.2.x