fix: set _stac_io on collection client

Author: gadomski

CHANGELOG.md

@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Fixed
+
+- Actually set `timeout` when initializing `StacApiIO` [#709](https://github.com/stac-utils/pystac-client/pull/709)
+- Set `_stac_io` on `CollectionClient` when reading [#709](https://github.com/stac-utils/pystac-client/pull/709)
+
 ## [v0.8.2] - 2024-05-30
 
 ### Added

pystac_client/stac_api_io.py

@@ -274,9 +274,11 @@ def stac_object_from_dict(
             return result
 
         if info.object_type == pystac.STACObjectType.COLLECTION:
-            return pystac_client.collection_client.CollectionClient.from_dict(
+            result = pystac_client.collection_client.CollectionClient.from_dict(
                 d, href=str(href), root=root, migrate=False, preserve_dict=preserve_dict
             )
+            result._stac_io = self
+            return result
 
         if info.object_type == pystac.STACObjectType.ITEM:
             return pystac.Item.from_dict(