Update release notes and fix flaky test

Author: mwaskom

doc/whatsnew/v0.12.2.rst

@@ -6,9 +6,11 @@ v0.12.2 (Unreleased)
 
 - |Enhancement| Automatic mark widths are now calculated separately for unshared facet axes (:pr:`3119`).
 
+- |Enhancement| Improved user feedback for failures during plot compilation by catching exceptions an reraising with a `PlotSpecError` that provides additional context (:pr:`3203`).
+
 - |Fix| Fixed a bug where legends for numeric variables with large values with be incorrectly shown (i.e. with a missing offset or exponent; :pr:`3187`).
 
-- |Fix| Improve robustness to empty data in several components of the objects interface (:pr:`3202`).
+- |Fix| Improved robustness to empty data in several components of the objects interface (:pr:`3202`).
 
 - |Fix| Fixed a regression in v0.12.0 where manually-added labels could have duplicate legend entries (:pr:`3116`).
 

tests/test_distributions.py

@@ -1934,8 +1934,8 @@ def test_mesh_log_scale(self, rng):
         edges = itertools.product(y_edges[:-1], x_edges[:-1])
         for i, (y_i, x_i) in enumerate(edges):
             path = mesh.get_paths()[i]
-            assert path.vertices[0, 0] == 10 ** x_i
-            assert path.vertices[0, 1] == 10 ** y_i
+            assert path.vertices[0, 0] == pytest.approx(10 ** x_i)
+            assert path.vertices[0, 1] == pytest.approx(10 ** y_i)
 
     def test_mesh_thresh(self, long_df):