tests(control): clear remaining xfails with waits

Author: tony

tests/test_control_mode_regressions.py

@@ -497,10 +497,6 @@ class EnvMultiFixture(t.NamedTuple):
             expected_value="window_1",
         ),
         id="env_new_window_multi",
-        marks=pytest.mark.xfail(
-            reason="control-mode loses environment with multiple -e flags",
-            strict=True,
-        ),
     ),
 ]
 
@@ -527,8 +523,8 @@ def test_environment_multi_var_propagation(case: EnvMultiFixture) -> None:
         pane = session.active_window.active_pane
         assert pane is not None
         pane.send_keys("echo $ENV_VAR_1", literal=True, suppress_history=False)
-        output = pane.capture_pane()
-        assert output[-2] == case.expected_value
+        lines = wait_for_line(pane, lambda line: line.strip() == case.expected_value)
+        assert any(line.strip() == case.expected_value for line in lines)
     finally:
         with contextlib.suppress(Exception):
             server.kill()