If your application page number has more than 5 digit then "-split" option produce not page_NNNNN.sql file, but page_NNNNN_XXX.sql where XXX just some ORDER BY suffix. Therefore, the same page may be sliced to different result file (comparing to previous run).
You have only pages 100001 and 100005. Result: page_10000_001.sql for page 100001, page_10000_002.sql for page 100005 (for example, I don't remeber exact file names);
You have added page 100002. Result: page_10000_001.sql for 100001, page_10000_002.sql for page 100002 and page_10000_003.sql for page 100005.
This "feature" ruins possibility of correct APEX-Git (and any other versioning system) binding. Is there a way for "-split" option to always save APEX page into .sql file with static name (based only on page number)?