[I] St_isempty(geometry) finds non null geometries but does not find null geometries. [sedona]

[via GitHub]

robertnagy1 opened a new issue, #1427:
URL: https://github.com/apache/sedona/issues/1427

   ## Expected behavior
   I have a geopackage with 3800 rows, and about half of them contain null 
geometries. (It is vendor data so i cannot share freely)
   When i run df.where("St_isempty(geometry)==False").count() i get about half 
of the geometries that do not contain null. 
   When i run df.where("St_isempty(geometry)==True").count() i should get about 
half of the geometries that  contain null. 
   
   ## Actual behavior
   
   When i run df.where("St_isempty(geometry)==True").count() i get 0 geometries 
that contain Null even though i have nulls in my geometry column.
   
![image](https://github.com/apache/sedona/assets/134613492/752a62e7-c07d-4844-a88c-775fbde8074b)
   ## Steps to reproduce the problem
   
   ## Settings
   
   Sedona version = 1.5.1
   
   Apache Spark version = 3.4
   
   Apache Flink version = ?
   
   API type = Python
   
   Scala version =  2.12
   
   JRE version =
   
   Python version = 
   
   Environment = Fabric
   


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