[Backport-3.10] Fix issue where wildcard routes get 503s intermittently. #22112
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As part of the resync processing, wildcard routes get a "HostAlreadyClaimed" error and then later as part of the same event processing flow, the route gets re-added. This results in a temporary outage (route returns 503s). fixes #1660647 (https://bugzilla.redhat.com/show_bug.cgi?id=1660647)
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Couldn't cherrypick from #22087 due to conflicts in the unit test file (import package name changes), so this is a new PR. Code fixes are the same.
As part of the resync processing, wildcard routes get a "HostAlreadyClaimed"
error and then later as part of the same event processing flow, the route
gets re-added. This results in a temporary outage (route returns 503s).
fixes #1660647 (https://bugzilla.redhat.com/show_bug.cgi?id=1660647)
@openshift/sig-network-edge PTAL Thx