Previously, it doesn't allow creating such a network:
e.g.
$ docker network inspect -f '{{.Id}}' ingress
84xh9knigj6zyt00u31e26nj3
$ docker network create 84
Error response from daemon: network with name 84 already exists
Fix #27866
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
Upstream-commit: edfbc3b8767ab2e89e73ba3142d2ddad295001e9
Component: engine