Comment 1 for bug 1914777

Copy pasting my comment from the other bug:

"It looks like the following nova change introduced a regression in our handling of "delete while booting" instances:

https://review.opendev.org/c/openstack/nova/+/702368

and this bug has apparently already been reported:

https://bugs.launchpad.net/tripleo/+bug/1892837

We will need to fix this in nova and backport it through to ussuri."

Marking this as High because it's a regression.