diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index f0991bd04..fbd50f39c 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -12,7 +12,7 @@
 
 ## Checks
 
-- I've used [pre-commit](https://microsoft.github.io/FLAML/docs/Contribute#pre-commit) to lint the changes in this PR (note the same in integrated in our CI checks).
+<!-- - I've used [pre-commit](https://microsoft.github.io/FLAML/docs/Contribute#pre-commit) to lint the changes in this PR (note the same in integrated in our CI checks). -->
 - [ ] I've included any doc changes needed for https://microsoft.github.io/FLAML/. See https://microsoft.github.io/FLAML/docs/Contribute#documentation to build and test documentation locally.
 - [ ] I've added tests (if relevant) corresponding to the changes introduced in this PR.
 - [ ] I've made sure all auto checks have passed.
diff --git a/test/spark/test_utils.py b/test/spark/test_utils.py
index 967b490fb..759c01dae 100644
--- a/test/spark/test_utils.py
+++ b/test/spark/test_utils.py
@@ -219,6 +219,7 @@ def test_n_current_trials():
     assert get_n_current_trials(2) == min(2, tmp_max)
     assert get_n_current_trials(50) == min(50, tmp_max)
     assert get_n_current_trials(200) == min(200, tmp_max)
+    del os.environ["FLAML_MAX_CONCURRENT"]
 
 
 def test_iloc_pandas_on_spark():