fix(editor): Fix disappearing NDV header in code nodes (#7290)

Github issue / Community forum post (link here to close automatically):

---------

Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>

cypress/fixtures/Dummy_javascript.txt

@@ -0,0 +1,42 @@
+var File = function(url, object){
+	File.list = Array.isArray(File.list)? File.list : [];
+	File.progress = File.progress || 0;
+	this.progress = 0;
+	this.object = object;
+	this.url = url;
+};
+
+File.indexOf = function(term){
+	for(var index in File.list){
+		var file = File.list[index];
+		if (file.equals(term) || file.url === term || file.object === term) {
+			return index;
+		}
+	}
+	return -1;
+};
+
+File.find = function(term){
+	var index = File.indexOf(term);
+	return ~index && File.list[index];
+};
+
+File.prototype.equals = function(file){
+	var isFileType = file instanceof File;
+	return isFileType && this.url === file.url && this.object === file.object;
+};
+
+File.prototype.save = function(update){
+	update = typeof update === 'undefined'? true : update;
+	if(Array.isArray(File.list)){
+		var index = File.indexOf(this);
+		if(~index && update) {
+			File.list[index] = this;
+			console.warn('File `%s` has been loaded before and updated now for: %O.', this.url, this);
+		}else File.list.push(this);
+		console.log(File.list)
+	}else{
+		File.list = [this];
+	}
+	return this;
+};

cypress/fixtures/Dummy_sql.txt

@@ -0,0 +1,49 @@
+CREATE TABLE emp (
+empno INT PRIMARY KEY,
+ename VARCHAR(10),
+job VARCHAR(9),
+mgr INT NULL,
+hiredate DATETIME,
+sal NUMERIC(7,2),
+comm NUMERIC(7,2) NULL,
+dept INT)
+begin
+insert into emp values
+    (1,'JOHNSON','ADMIN',6,'12-17-1990',18000,NULL,4)
+insert into emp values
+    (2,'HARDING','MANAGER',9,'02-02-1998',52000,300,3)
+insert into emp values
+    (3,'TAFT','SALES I',2,'01-02-1996',25000,500,3)
+insert into emp values
+    (4,'HOOVER','SALES I',2,'04-02-1990',27000,NULL,3)
+insert into emp values
+    (5,'LINCOLN','TECH',6,'06-23-1994',22500,1400,4)
+insert into emp values
+    (6,'GARFIELD','MANAGER',9,'05-01-1993',54000,NULL,4)
+insert into emp values
+    (7,'POLK','TECH',6,'09-22-1997',25000,NULL,4)
+insert into emp values
+    (8,'GRANT','ENGINEER',10,'03-30-1997',32000,NULL,2)
+insert into emp values
+    (9,'JACKSON','CEO',NULL,'01-01-1990',75000,NULL,4)
+insert into emp values
+    (10,'FILLMORE','MANAGER',9,'08-09-1994',56000,NULL,2)
+insert into emp values
+    (11,'ADAMS','ENGINEER',10,'03-15-1996',34000,NULL,2)
+insert into emp values
+    (12,'WASHINGTON','ADMIN',6,'04-16-1998',18000,NULL,4)
+insert into emp values
+    (13,'MONROE','ENGINEER',10,'12-03-2000',30000,NULL,2)
+insert into emp values
+    (14,'ROOSEVELT','CPA',9,'10-12-1995',35000,NULL,1)
+end
+CREATE TABLE dept (
+deptno INT NOT NULL,
+dname VARCHAR(14),
+loc VARCHAR(13))
+begin
+insert into dept values (1,'ACCOUNTING','ST LOUIS')
+insert into dept values (2,'RESEARCH','NEW YORK')
+insert into dept values (3,'SALES','ATLANTA')
+insert into dept values (4, 'OPERATIONS','SEATTLE')
+end