Merge pull request #1698 from souhhmm/fix/xyxy-shape-crash

fix: is_empty check for filtering

supervision/detection/core.py

@@ -1201,6 +1201,8 @@ class Detections:
         """
         if isinstance(index, str):
             return self.data.get(index)
+        if self.is_empty():
+            return Detections.empty()
         if isinstance(index, int):
             index = [index]
         return Detections(

test/detection/test_core.py

@@ -223,6 +223,12 @@ TEST_DET_DIFFERENT_METADATA = Detections(
             None,
             pytest.raises(IndexError),
         ),
+        (
+            Detections.empty(),
+            np.isin(Detections.empty()["class_name"], ["cat", "dog"]),
+            Detections.empty(),
+            DoesNotRaise(),
+        ),  # Filter an empty detections by specific class names
     ],
 )
 def test_getitem(