Don't clip colorbar dividers

QuLogic · QuLogic · commit 8fa6bd536f68 · 2022-08-09T00:26:09.000-04:00
They are sometimes right on the edge of the Axes, and the last (or possibly first) don't get drawn due to clipping. Because the divider line width is the same as the Axes frame line width, we don't have to worry about it going outside when unclipped. Fixes #22864
diff --git a/lib/matplotlib/colorbar.py b/lib/matplotlib/colorbar.py
@@ -434,7 +434,8 @@ def __init__(self, ax, mappable=None, *, cmap=None,
         self.dividers = collections.LineCollection(
             [],
             colors=[mpl.rcParams['axes.edgecolor']],
-            linewidths=[0.5 * mpl.rcParams['axes.linewidth']])
+            linewidths=[0.5 * mpl.rcParams['axes.linewidth']],
+            clip_on=False)
         self.ax.add_collection(self.dividers)
 
         self._locator = None
