Remove transient cluster settings

Elastic Stack Elasticsearch
1

I accidentally PUT an array of IP addresses to a transient cluster setting allocation.exclude._ip. This should have been a single value instead. How can I delete these invalid settings?

transient: {
cluster: {
routing: {
allocation: {
exclude: {
_ip: "10.20.1.103",
_ip.19: "10.20.1.89",
_ip.10: "10.20.1.98",
_ip.32: "10.20.1.53",
...
}