diff --git a/openmc/_xml.py b/openmc/_xml.py
index b4e08c751..450c8a99b 100644
--- a/openmc/_xml.py
+++ b/openmc/_xml.py
@@ -11,7 +11,7 @@ def clean_indentation(element, level=0, spaces_per_level=2, trailing_indent=True
     spaces_per_level : int
         Number of spaces per indentation level (default 2)
     trailing_indent : bool
-        Whether or not to include an indentation after closing the element
+        Whether or not to add indentation after closing the element
 
     """
     i = "\n" + level*spaces_per_level*" "
diff --git a/openmc/model/model.py b/openmc/model/model.py
index 9c38d27c3..145a2151b 100644
--- a/openmc/model/model.py
+++ b/openmc/model/model.py
@@ -469,7 +469,7 @@ class Model:
             Whether or not to remove redundant surfaces from the geometry when
             exporting.
         filename : str
-            Name of the single XML file to create (only used :math:`separate_xmls` if False)
+            Name of the single XML file to create (only used :math:`separate_xmls` is False)
 
             .. versionadded:: 0.13.1
 
diff --git a/src/initialize.cpp b/src/initialize.cpp
index a6a6b5a77..212b2f7bd 100644
--- a/src/initialize.cpp
+++ b/src/initialize.cpp
@@ -359,11 +359,7 @@ bool read_model_xml() {
       fmt::format("No <materials> node present in the {} file.", xml_filename));
   }
 
-  // find materials node this object cannot be used after being passed to the
-  // cross section reading function below
-  auto materials_node = root.child("materials");
-  read_cross_sections_xml(materials_node);
-
+  read_cross_sections_xml(root.child("materials"));
   read_materials_xml(root.child("materials"));
 
   // Read geometry
diff --git a/tests/regression_tests/adj_cell_rotation/__init__.py b/tests/regression_tests/adj_cell_rotation/__init__.py
index 7efe44865..e69de29bb 100644
--- a/tests/regression_tests/adj_cell_rotation/__init__.py
+++ b/tests/regression_tests/adj_cell_rotation/__init__.py
@@ -1,2 +0,0 @@
-
-from .test import model
\ No newline at end of file
diff --git a/tests/regression_tests/energy_laws/__init__.py b/tests/regression_tests/energy_laws/__init__.py
index 29fbfcc0c..e69de29bb 100644
--- a/tests/regression_tests/energy_laws/__init__.py
+++ b/tests/regression_tests/energy_laws/__init__.py
@@ -1 +0,0 @@
-from .test import model
\ No newline at end of file
diff --git a/tests/regression_tests/lattice_multiple/__init__.py b/tests/regression_tests/lattice_multiple/__init__.py
index 29fbfcc0c..e69de29bb 100644
--- a/tests/regression_tests/lattice_multiple/__init__.py
+++ b/tests/regression_tests/lattice_multiple/__init__.py
@@ -1 +0,0 @@
-from .test import model
\ No newline at end of file
diff --git a/tests/regression_tests/model_xml/test.py b/tests/regression_tests/model_xml/test.py
index 0dc2cc289..52f67f76f 100644
--- a/tests/regression_tests/model_xml/test.py
+++ b/tests/regression_tests/model_xml/test.py
@@ -9,10 +9,10 @@ from tests.testing_harness import PyAPITestHarness, colorize
 
 # use a few models from other tests to make sure the same results are
 # produced when using a single model.xml file as input
-from ..adj_cell_rotation import model as adj_cell_rotation_model
-from ..lattice_multiple import model as lattice_mult_model
-from ..energy_laws import model as energy_laws_model
-from ..photon_production import model as photon_prod_model
+from ..adj_cell_rotation.test import model as adj_cell_rotation_model
+from ..lattice_multiple.test import model as lattice_mult_model
+from ..energy_laws.test import model as energy_laws_model
+from ..photon_production.test import model as photon_prod_model
 
 
 class ModelXMLTestHarness(PyAPITestHarness):
diff --git a/tests/regression_tests/photon_production/__init__.py b/tests/regression_tests/photon_production/__init__.py
index 29fbfcc0c..e69de29bb 100644
--- a/tests/regression_tests/photon_production/__init__.py
+++ b/tests/regression_tests/photon_production/__init__.py
@@ -1 +0,0 @@
-from .test import model
\ No newline at end of file