Nexus docker registry delete REST api partially deletes an image

Deleted a docker image through docker registry REST api. The image was deleted successfully from Nexus UI, but still lists in the GET /v2/<name>/tags/list API.
No workaround exists.

Steps:
Get image digest:

curl -v -u '<userid>:<passwd>' -H 'Accept:application/vnd.docker.distribution.manifest.v2+json' https://<host>:<port>/v2/testimg/manifests/1.0.0

From response header:
Docker-Content-Digest: sha256:0c2e8350966123c27427152c66024d280e8d60a01ca37b3bac84b61882b6f832

Delete image

curl -v -X DELETE -u '<userid>:<passwd>' https://<host>:<port>/v2/testimg/manifests/sha256:0c2e8350966123c27427152c66024d280e8d60a01ca37b3bac84b61882b6f832

get response: HTTP/1.1 202 Accepted

At this point image has been deleted from Nexus UI. But below list tags call still return the version

curl -u '<userid>:<passwd>' https://<host>:<port>/v2/testimg/tags/list
{"name":"testimg","tags":["1.0.0"]}