Problem description: 

When I use  the horizontal or vertical split bar in a document and freeze it and save the document and close it then get back to it, the split bar is no more there.
 
Steps to reproduce:
1. use split (horizontal or vertical in a sheet
2. save & close document
3. open document again

Current behavior:

The split is not available and not saved. Even, when you use the split in the first place the system will not make the save button as active as if no changes had been done on the document.

Expected behavior:

All changes should be saved when requested. If user did not save the document, it should ask upon closing if changes are to be saved or not.

              
Operating System: Ubuntu
Last worked in: 3.5.4 release