fix: adjust for Pandas changing its API again (#1322)

src/uproot/interpretation/library.py

@@ -919,7 +919,12 @@ def global_index(self, arrays, global_offset):
             )
 
         else:
-            index = arrays.index.arrays
+            # arrays.index.values before Pandas 0.24 and again now;
+            # arrays.index.arrays from Pandas 0.24 through some time ago.
+            if hasattr(arrays.index, "values"):
+                index = arrays.index.values
+            else:
+                index = arrays.index.arrays
             numpy.add(index, global_offset, out=index)
 
         return arrays

tests/test_1321_pandas_changed_api_again.py

@@ -0,0 +1,20 @@
+# BSD 3-Clause License; see https://github.com/scikit-hep/uproot5/blob/main/LICENSE
+
+import pytest
+import skhep_testdata
+import uproot
+
+pytest.importorskip("pandas")
+
+
+def test():
+    assert (
+        len(
+            uproot.concatenate(
+                skhep_testdata.data_path("uproot-Zmumu.root"),
+                library="pd",
+                cut="Run > 148029",
+            )
+        )
+        == 1580
+    )