From 5b0d225ba821e2f63914190b113696a6f5ec4bca Mon Sep 17 00:00:00 2001
From: Jody Klymak <jklymak@gmail.com>
Date: Fri, 8 Apr 2022 19:19:47 +0200
Subject: [PATCH] FIX: callback for subfigure uses parent

---
 lib/matplotlib/figure.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/matplotlib/figure.py b/lib/matplotlib/figure.py
index a8f953760a6f..2e5830ec2463 100644
--- a/lib/matplotlib/figure.py
+++ b/lib/matplotlib/figure.py
@@ -924,7 +924,6 @@ def clear(self, keep_observers=False):
             a gui widget is tracking the Axes in the figure.
         """
         self.suppressComposite = None
-        self.callbacks = cbook.CallbackRegistry()
 
         # first clear the axes in any subfigures
         for subfig in self.subfigs:
@@ -2025,6 +2024,8 @@ def __init__(self, parent, subplotspec, *,
         self._subplotspec = subplotspec
         self._parent = parent
         self.figure = parent.figure
+        self.callbacks = parent.callbacks
+
         # subfigures use the parent axstack
         self._axstack = parent._axstack
         self.subplotpars = parent.subplotpars