(!) Tool deletes values *:zone, *:fee during update

[tordans]

It looks like the current version of the tool deletes tags without the user knowing or wanting it to

Here is an example: https://osmcha.org/changesets/156706734
Eg https://osmlab.github.io/osm-deep-history/#/way/147657122

parking:both:fee and parking:both:zone where both removed in this changeset.

[zlant]

Must be fixed