8567: Bugfix check for existing repo+tag links.

diff --git a/sdk/python/arvados/commands/keepdocker.py b/sdk/python/arvados/commands/keepdocker.py
index 5f29bf054b378b09f66889f13c75002b5847525f..a0dc43ea366f833cb22295dffad985d60b1f521b 100644 (file)
--- a/sdk/python/arvados/commands/keepdocker.py
+++ b/sdk/python/arvados/commands/keepdocker.py
@@ -413,7 +413,7 @@ def main(arguments=None, stdout=sys.stdout):
                         api, args.retries,
                         filters=[['link_class', '=', 'docker_image_repo+tag'],
                                  ['name', '=', image_repo_tag],
-                                 ['head_uuid', 'in', collections]])
+                                 ['head_uuid', 'in', [c["uuid"] for c in collections]]])
                 else:
                     existing_repo_tag = []