Operation Name not forwarded to remote via stitchSchemas

[klippx]

Describe the bug

Operation Name is not forwarded correctly to schema produced by stitchSchemas from import { stitchSchemas } from '@graphql-tools/stitch'

We are using stitchSchemas to wrap several remote graphql services in one BFF and those services need operation name intact.

To Reproduce

I have added a failing test in a branch, but I need to create the issue before opening a PR to view the diff.

Update: PR

Expected behavior

Operation Name provided by client is critical to be forwarded to the underlying remote schemas, especialy if they require operationName in query for metrics purposes.

Environment:

• OS: macos
• @graphql-tools/stitch: 8.4.4
• NodeJS: v14.17.0

Additional context

None

[ardatan]

I think this is duplicate with this one;
#2884

[klippx]

Yes, it is the same issue.