Graphql incorrect request after import from Curl

After importing a request from Curl and changing the type from JSON to GQL, sent requests have an invalid request body: {"query":""}. Making the variables field dirty (changing it in any way) fixes this.

Reproduction:

1. Copy any GQL request as Curl:

   curl 'https://gui-api-alpha.recombee.net/graphql?o=AccountScreenUpdateCurrentUserMutation' \
     -X POST \
     -H 'content-type: application/json' \
     --data-raw $'{"operationName":"AccountScreenUpdateCurrentUserMutation","query":"mutation AccountScreenUpdateCurrentUserMutation($input: CurrentAdminInput\041) {\\n  updateCurrentAdmin(input: $input) {\\n    id\\n    lastLoginAt\\n    email\\n    fullName\\n    createdAt\\n    ultimateAdminPermissions\\n    picture\\n    role\\n    __typename\\n  }\\n  __typename\\n}","variables":{"input":{"fullName":"Daniel Breiner","role":"ENGINEER"}}}'
   

2. Import from Curl
3. Change type from JSON to GraphQL
4. Click send - the request will fail. You can look at the sent request - it is not valid ({"query":""})
5. You can work around the issue by changing the variables in any way (add/remove/also copy and paste the same contents works)