avoid re-using get_array()

Author: raphaelquast

lib/matplotlib/collections.py

@@ -2202,6 +2202,6 @@ def get_cursor_data(self, event):
         if len(info["ind"]) == 1:
             ind, = info["ind"]
             array = self.get_array()
-            return self.get_array()[ind] if array else None
+            return array[ind] if array else None
         else:
             return None