[hotfix] don't add trigger if the autoname field and fieldname is not same (#4074)

frappe/public/js/frappe/form/controls/data.js

@@ -29,7 +29,8 @@ frappe.ui.form.ControlData = frappe.ui.form.ControlInput.extend({
 		if (!this.df.parent) return;
 		this.meta = frappe.get_meta(this.df.parent);
 		if (this.meta && this.meta.autoname
-			&& this.meta.autoname.substr(0, 6)==='field:') {
+			&& this.meta.autoname.substr(0, 6)==='field:'
+			&& this.meta.autoname.substr(6) === this.df.fieldname) {
 			this.$input.on('keyup', () => {
 				this.set_description('');
 				if (this.doc && this.doc.__islocal) {