Hello, it looks like you are doing a good job fixing up phone numbers!
I just want to understand if there is something wrong with my tool, as it seems that you created 5 empty changesets (this, 174591805, 174593564, 174594824, 174600104) for województwo mazowieckie before creating https://www.openstreetmap.org/changeset/174600765 with 1111 edits in it.
If you can remember what you were doing to make that happen then please let me know