Fix KeyError exc in volumes_client

is_resource_deleted method of v3 volumes_client was wrongly accessing
id value of a volume causing KeyError - in case the being deleted
volume was in error_deleting state.

Closes-Bug: #1887980
Change-Id: I6cea9917c248ceaa8b7cd60d0a20a2bf7540d9b9
diff --git a/releasenotes/notes/Fix-KeyError-bug-in-v3-volumes_client-ff5d9b894f2257c8.yaml b/releasenotes/notes/Fix-KeyError-bug-in-v3-volumes_client-ff5d9b894f2257c8.yaml
new file mode 100644
index 0000000..bbb1901
--- /dev/null
+++ b/releasenotes/notes/Fix-KeyError-bug-in-v3-volumes_client-ff5d9b894f2257c8.yaml
@@ -0,0 +1,10 @@
+---
+fixes:
+  - |
+    is_resource_deleted method of v3 volumes_client might have returned
+    a KeyError exception due to an incorrect accessing of a volume id
+    in the case the volume was in error_deleting state.
+    incorrect code - volume['id']
+    correct code - volume['volume']['id']
+    More details about the issue can be found at
+    https://bugs.launchpad.net/tempest/+bug/1887980