MNT: Fix double evaluation of _LazyTickList

Closes matplotlib#28908.

It seems the read-access to `instance.majorTicks` per `instance
.majorTicks.append()` still triggers the descriptor, even though
`instance.majorTicks = []` previously should have rebound the name. For
details see matplotlib#28908.

lib/matplotlib/axis.py

@@ -21,6 +21,7 @@
 import matplotlib.transforms as mtransforms
 import matplotlib.units as munits
 
+from line_profiler import profile
 _log = logging.getLogger(__name__)
 
 GRIDLINE_INTERPOLATION_STEPS = 180
@@ -531,6 +532,7 @@ class _LazyTickList:
     def __init__(self, major):
         self._major = major
 
+    @profile
     def __get__(self, instance, owner):
         if instance is None:
             return self
@@ -543,12 +545,12 @@ def __get__(self, instance, owner):
             if self._major:
                 instance.majorTicks = []
                 tick = instance._get_tick(major=True)
-                instance.majorTicks.append(tick)
+                instance.majorTicks = [tick]
                 return instance.majorTicks
             else:
                 instance.minorTicks = []
                 tick = instance._get_tick(major=False)
-                instance.minorTicks.append(tick)
+                instance.minorTicks = [tick]
                 return instance.minorTicks