editoast: fix duplicate key of rolling_stock_name_key

Author: hamz2a

editoast/src/fixtures.rs

@@ -3,6 +3,7 @@ pub mod tests {
     use std::io::Cursor;
     use std::ops::{Deref, DerefMut};
     use std::sync::Arc;
+    use uuid::Uuid;
 
     use crate::client::PostgresConfig;
     use crate::modelsv2::database::connection_pool::create_connection_pool;
@@ -259,8 +260,7 @@ pub mod tests {
         } = scenario_fixture_set().await;
 
         let pathfinding = pathfinding(db_pool()).await;
-        let mut rs_name = "fast_rolling_stock_".to_string();
-        rs_name.push_str(name);
+        let rs_name = format!("fast_rolling_stock_{}_{name}", Uuid::new_v4()).to_string();
         let rolling_stock = named_fast_rolling_stock(&rs_name, db_pool()).await;
         let ts_model = make_train_schedule(
             db_pool(),