[backport 2.3.x] API: ignore empty range/object dtype in Index setop operations (string dtype compat) (#60797)#60948

jorisvandenbossche merged 8 commits intopandas-dev:2.3.xpandas-dev/pandas:2.3.xfrom

jorisvandenbossche:backport-60797jorisvandenbossche/pandas:backport-60797Copy head branch name to clipboard