SSH Remoting: Fix reload/save race (#19519)

Release Notes:

- N/A

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

crates/remote_server/src/remote_editing_tests.rs

@@ -479,7 +479,19 @@ async fn test_remote_reload(cx: &mut TestAppContext, server_cx: &mut TestAppCont
         })
         .await
         .unwrap();
+
+    fs.save(
+        &PathBuf::from("/code/project1/src/lib.rs"),
+        &("bangles".to_string().into()),
+        LineEnding::Unix,
+    )
+    .await
+    .unwrap();
+
+    cx.run_until_parked();
+
     buffer.update(cx, |buffer, cx| {
+        assert_eq!(buffer.text(), "bangles");
         buffer.edit([(0..0, "a")], None, cx);
     });