fix: grid frozen issue

frappe/public/js/frappe/form/grid.js

@@ -37,6 +37,8 @@ export default class Grid {
 		}
 
 		this.is_grid = true;
+		this.debounced_refresh = this.refresh.bind(this);
+		this.debounced_refresh = frappe.utils.debounce(this.debounced_refresh, 500);
 	}
 
 	allow_on_grid_editing() {
@@ -675,6 +677,7 @@ export default class Grid {
 		if (!idx) {
 			idx = this.grid_rows.length - 1;
 		}
+
 		setTimeout(() => {
 			this.grid_rows[idx].row
 				.find('input[type="Text"],textarea,select').filter(':visible:first').focus();
@@ -934,6 +937,6 @@ export default class Grid {
 		// update the parent too (for new rows)
 		this.docfields.find(d => d.fieldname === fieldname)[property] = value;
 
-		this.refresh();
+		this.debounced_refresh();
 	}
 }