Created attachment 76671 [details]
The result of merging

* Create a sample spreadsheet document and fill the 1st column with some test data (see test.ods)
* Create a sample text document and insert a field associated with the column in the spreadsheet (<Full name> in text.otd)
* Start "Tools → Mail Merge Wizard". Press "Next" until you get to last step ("Save, print or send").
* In this dialog choose "Save merged document" and "Save as single document". Press "Save Documents" and save the document. For the newly opened merged document note that page 1 has text and page 2 has text (as expected).
* Open print dialog (Ctrl-P). 

Result: The number of reported pages is 7, while the editor displays only 4. Every even page is blank.
Expected: The number of pages on the document should be 4. The printed version should correspond to one on the screen (4 pages).