az mysql flexible-server show returns null

### Describe the bug

az mysql flexible-server show

### Related command

I have a piece of code that does check if a mysql server exixts and it is at a Ready state.
The `az mysql flexible-server show` that check fo rthe server always returns null. While `az mysql flexible-server list` for the same server returns id value properly. The code I use is as follows:
`
server_status=$(az mysql flexible-server show --resource-group $resourcegroup --name $sername --query "userVisibleState" --output tsv)

if [ -z "$server_status" ]; then
echo "Server [$sername] does not exist."
exit 1
elif [ "$server_status" != "Ready" ]; then
echo "Server [$sername] exists but is not in the 'Ready' state. Current state: $server_status."
exit 1
else
echo "Server [$sername] is in state: $server_status. Proceeding to create database [$dbname]."
`
this code never works because `server_status` is always null.

while this `server_id=$(az mysql flexible-server list --resource-group $resourcegroup --query "[?name=='$sername'].id" --output tsv)` works fine. But I cannot use it to get the state o fthe server.

Seems like a bug with `az mysql flexible-server show`.

### Errors

server_status=$(az mysql flexible-server show --resource-group $resourcegroup --name $sername --query "userVisibleState" --output tsv)

if [ -z "$server_status" ]; then
echo "Server [$sername] does not exist."
exit 1
elif [ "$server_status" != "Ready" ]; then
echo "Server [$sername] exists but is not in the 'Ready' state. Current state: $server_status."
exit 1
else
echo "Server [$sername] is in state: $server_status. Proceeding to create database [$dbname]."

### Issue script & Debug output

server_status=$(az mysql flexible-server show --resource-group $resourcegroup --name $sername --query "userVisibleState" --output tsv)

if [ -z "$server_status" ]; then
echo "Server [$sername] does not exist."
exit 1
elif [ "$server_status" != "Ready" ]; then
echo "Server [$sername] exists but is not in the 'Ready' state. Current state: $server_status."
exit 1
else
echo "Server [$sername] is in state: $server_status. Proceeding to create database [$dbname]."

### Expected behavior

`az mysql flexible-server show` should return details about the server

### Environment Summary

azure-cli 2.69.0

### Additional context

_No response_