[Premium] Azure Portal template fail

[wforney]

Describe the bug
The template in the azure portal to create a flex consumption function app fails when used with a vnet integration saying the subnet doesn't contain tags.

To Reproduce
Steps to reproduce the behavior:

1. Go to Azure Portal in browser
2. Create a Function App
3. Choose Flex Consumption
4. Go thru wizard and choose to integrate with a vnet and add a subnet
5. Finish out the wizard and wait for creation

Expected behavior
The app should create and finish deployment without error. Instead you get an error that it can't find the tags property in the template. The ARM template is hosed.

Screenshots
I don't have one unfortunately.

Additional context
None