Nexus generated types issue

[harsh7seasol]

My nexus types are getting generated in typings.ts file
And my types is looks like this

Query: {
    UserSearch: NexusGenRootTypes['UserConnection'];
}

UserConnection: { // field return type
    edges: Array<NexusGenRootTypes['UserEdge'] | null> | null; // [UserEdge]
    pageInfo: NexusGenRootTypes['PageInfo']; // PageInfo!
 }
 UserEdge: { // field return type
    cursor: string; // String!
    node: NexusGenRootTypes['User'] | null; // User
 }

Where type of node in UserEdge suppose to be just NexusGenRootTypes['User']
But it generating as NexusGenRootTypes['User'] | null

In the older version of nexus it was working fine as it was generating type as NexusGenRootTypes['User'] only.
I was using nexus version - 0.12.0-rc.13
And when i have upgraded my code and nexus version to 1.3.0, it has raised this problem

I have also tried to give nulllable: false in my UserSearch queryField, but it didn't work.

Thanks in advance!