Versions set for operations but not models with custom profile

[Phkrauss]

• Package Name: azure-mgmt-compute
• Package Version: 9.0.0
• Operating System: mac os Mojave 10.14.6
• Python Version: 3.6.7

Describe the bug
This may or may not be a bug, but i noticed while creating custom profiles or passing specific api versions to the client, the operations versions change but not the models.

To Reproduce
Steps to reproduce the behavior:

1. create a custom profile like so:

profile = ProfileDefinition(
                {
                    "azure.mgmt.compute.ComputeManagementClient": {
                        None: "2018-06-01",
                        "disks": "2018-04-01",
                        "resource_skus": "2017-09-01",
                    }
                },
                label="azure.mgmt.compute.ComputeManagementClient" + " latest",
            )

2. pass the profile to ComputeManagementClient along with other required fields.
3. inspect the client and validate the profile is present:

>>> conn.azure_sdk_client.profile.get_profile_dict()
{'azure.mgmt.compute.ComputeManagementClient': {None: '2018-06-01', 'disks': '2018-04-01', 'resource_skus': '2017-09-01'}}

4. check the operations:

>>> conn.azure_sdk_client.operations
<azure.mgmt.compute.v2018_06_01.operations._operations.Operations object at 0x10416ea20>

5. but now check the models:

>>> conn.azure_sdk_client.models()
<module 'azure.mgmt.compute.v2019_07_01.models' from 'path in site-packages'

**Expected behavior**
I simply expected that the model versions would use the same as the operations, especially since they are all stored in the same version dir.

**Screenshots**
N/A

**Additional context**
To be fair I have not ran into any problems as of yet, though i find this concerning. if the latest default version (which is what the model seems to use) is applicable to all versions it seems misleading to store a copy in each version then pull from the latest. I would also be further concerned that if the models did differ the older operations would not align properly with the expected models.

[RodgeFu]

seems dup of #10635 , close this one