Why image digest changes upon same image with different tags?

Issue

As explained in Openshift documentation about tags:

The vX.Y tag points to X.Y.Z-
and,
the X.Y.Z tag points to the latest X.Y.Z-

Putting ose-deployer image as example:+

$ skopeo inspect docker://registry.access.redhat.com/openshift3/ose-deployer | jq -r '.RepoTags | map(select(test("3.7"))) | .[]' | sort --version-sort
v3.7
v3.7.9
v3.7.9-21
v3.7.14
v3.7.14-5
v3.7.23
v3.7.23-3
v3.7.23-10

I would expect in the above example, that the "v3.7" tag (and "v3.7.23") point to the latest "X.Y.Z-" tag (v3.7.23-10), i.e have the same SHA256 digests. Let us check that.

$ skopeo inspect docker://registry.access.redhat.com/openshift3/ose-deployer:v3.7 | jq -r '.Tag,.Digest'
v3.7
sha256:0218d002e5da75a8aeeadc346b7457c6fef5bbc02d0b7b4c6c4bcffd9410634a

$ skopeo inspect docker://registry.access.redhat.com/openshift3/ose-deployer:v3.7.23 | jq -r '.Tag,.Digest'
v3.7.23
sha256:80536454573e4ae9644a9173a7e03968e86f5e3542e9bebc71a543be7721f8d9

$ skopeo inspect docker://registry.access.redhat.com/openshift3/ose-deployer:v3.7.23-10 | jq -r '.Tag,.Digest'
v3.7.23-10
sha256:218459c299fb6d1f5914beb7179fd96823ce3872810c76bb941d90e9518636cc

Clearly the tags point to different SHA256 digests, does it meant they are different images ?