Adds doc text for registry bugs

Author: Steven Smith

release_notes/ocp-4-19-release-notes.adoc

@@ -1062,7 +1062,9 @@ For more information about the unsupported, community-maintained, version of the
 
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 [id="ocp-release-note-image-registry-bug-fixes_{context}"]
-==== Image Registry
+==== Registry
+
+* Previously, image importing from blocked registries would fail if those registries were configured with `NeverContactSource`, even when mirror registries were set up. With this update, image importing is no longer blocked when a registry has mirrors configured. This ensures that image imports succeed even if the original source was set to `NeverContactSource` in the `ImageDigestMirrorSet` or `ImageTagMirrorSet` resources. (link:https://issues.redhat.com/browse/OCPBUGS-44432[*OCPBUGS-44432*])
 
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 [id="ocp-release-note-installer-bug-fixes_{context}"]