High CPU load caused by infinite loop

• Create a Ringgroup with an extension attached to it
• The user is offline
• Reload the page and add the same Ring group as Last destination

That will create an infinite loop which causes high CPU/load on the VM.

I understand the cause of the load and loops should be avoided but this should not be possible because tenants can also make a mistake which causes issues with other tenants.

Possible solution is to stop after x loop attempts?