fix: don't transform_href in __getstate__ (#1337)

Author: gadomski

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Fixed
+
+- Don't transform hrefs in `Item.__getstate__` ([#1337](https://github.com/stac-utils/pystac/pull/1337))
+
 ## [v1.10.0] - 2024-03-28
 
 ### Added

pystac/item.py

@@ -177,7 +177,12 @@ def __getstate__(self) -> dict[str, Any]:
         d = self.__dict__.copy()
 
         d["links"] = [
-            link.to_dict() if link.get_href() else link for link in d["links"]
+            (
+                link.to_dict(transform_href=False)
+                if link.get_href(transform_href=False)
+                else link
+            )
+            for link in d["links"]
         ]
 
         return d

tests/test_item.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import copy
 import json
 import os
 import pickle
@@ -682,3 +683,12 @@ def test_pickle_with_only_href_links(item: Item) -> None:
         assert original.media_type == new.media_type
         assert str(original.owner) == str(new.owner)
         assert str(original.target) == str(new.target)
+
+
+def test_copy_with_unresolveable_root(item: Item) -> None:
+    item.add_link(
+        pystac.Link(
+            "root", "s3://naip-visualization/this-is-a-non-existent-catalog.json"
+        )
+    )
+    copy.deepcopy(item)