Images different between grc.io and us.gcr.io

[mattnelson]

Is it expected that the images pulled from grc.io and us.gcr.io are kept relatively in sync? There is currently a 6 year drift between those 2 registries.

REPOSITORY                          TAG      IMAGE ID       CREATED       SIZE
gcr.io/kaniko-project/executor      latest   41bb2d28907f   4 weeks ago   68MB
gcr.io/kaniko-project/executor      debug    82ae55dd869e   4 weeks ago   93.7MB
us.gcr.io/kaniko-project/executor   debug    a0d8a43afa0b   6 years ago   37.7MB
us.gcr.io/kaniko-project/executor   latest   20b09335e9e6   6 years ago   36.8MB