Fix GQL operationName not being picked up somethings (Closes #1856)

packages/insomnia-app/app/ui/components/editors/body/graph-ql-editor.js

@@ -390,6 +390,8 @@ class GraphQLEditor extends React.PureComponent<Props, State> {
   }
 
   _handleBodyChange(query: string, variables: ?Object, operationName: ?string): void {
+    this._setDocumentAST(query);
+
     const body: GraphQLBody = { query };
 
     if (variables) {
@@ -400,16 +402,6 @@ class GraphQLEditor extends React.PureComponent<Props, State> {
       body.operationName = operationName;
     }
 
-    const newContent = GraphQLEditor._graphQLToString(body);
-
-    // This method gets called a lot so make sure we only do something if the
-    // new body has actually changed.
-    if (this.props.content === newContent) {
-      return;
-    }
-
-    this._setDocumentAST(query);
-
     // Find op if there isn't one yet
     if (!body.operationName) {
       const newOperationName = this._getCurrentOperation();
@@ -418,6 +410,8 @@ class GraphQLEditor extends React.PureComponent<Props, State> {
       }
     }
 
+    const newContent = GraphQLEditor._graphQLToString(body);
+
     this.setState({
       variablesSyntaxError: '',
       body,