Can't combine domains and subdomain hostnames

[PurpleBooth]

To replicate

apiVersion: v1
kind: Service
metadata:
  annotations:
    external-dns.alpha.kubernetes.io/hostname: '*.solace-system.net.,www.purplebooth.co.uk.,purplebooth.co.uk.'

Expected

All hosts to correctly resolve to the same IP.

Actual

Only the wildcard domain is configured

time="2018-09-17T22:16:44Z" level=info msg="Change zone: solace-system-net"
time="2018-09-17T22:16:44Z" level=info msg="Del records: a.solace-system.net. A [35.197.240.140] 300"
time="2018-09-17T22:16:44Z" level=info msg="Del records: a.solace-system.net. TXT [\"heritage=external-dns,external-dns/owner=siQueeSeid2fi5eo2iem,external-dns/resource=service/istio-system/knative-ingressgateway\"] 300"
time="2018-09-17T22:16:44Z" level=info msg="Add records: *.solace-system.net. A [35.197.240.140] 300"
time="2018-09-17T22:16:44Z" level=info msg="Add records: *.solace-system.net. TXT [\"heritage=external-dns,external-dns/owner=siQueeSeid2fi5eo2iem,external-dns/resource=service/istio-system/knative-ingressgateway\"] 300"
time="2018-09-17T22:16:44Z" level=info msg="Change zone: purplebooth-co-uk"
time="2018-09-17T22:16:44Z" level=info msg="Del records: b.purplebooth.co.uk. A [35.197.240.140] 300"
time="2018-09-17T22:16:44Z" level=info msg="Del records: c.purplebooth.co.uk. A [35.197.240.140] 300"
time="2018-09-17T22:16:44Z" level=info msg="Del records: b.purplebooth.co.uk. TXT [\"heritage=external-dns,external-dns/owner=siQueeSeid2fi5eo2iem,external-dns/resource=service/istio-system/knative-ingressgateway\"] 300"
time="2018-09-17T22:16:44Z" level=info msg="Del records: c.purplebooth.co.uk. TXT [\"heritage=external-dns,external-dns/owner=siQueeSeid2fi5eo2iem,external-dns/resource=service/istio-system/knative-ingressgateway\"] 300"
time="2018-09-17T22:17:44Z" level=info msg="All records are already up to date"

Note

Non-wildcard domains work fine, for example

apiVersion: v1
kind: Service
metadata:
  annotations:
    external-dns.alpha.kubernetes.io/hostname: 'a.solace-system.net.,b.purplebooth.co.uk.,c.purplebooth.co.uk.'

is configured as expected

Provider: google cloud dns

[PurpleBooth]

I'm going to close this issue

The problem was that I have txt records on the "A" for "purplebooth.co.uk" (#449)