Change Details

There is currently a `"TBD default comment"` stub left in the code. Once it is decided what the default should be, change it to that and add an e2e test that checks it.

There is currently a `"TBD default comment"` stub left in the code. Once it is decided what the default should be, change it to that and add an e2e test that checks it. The default should be `"Wikibase REST API edit"`.

There is currently a `"TBD default comment"` stub left in the code. Once it is decided what the default should be, change it to that and add an e2e test that checks it. The default should be `"Wikibase REST API edit"`.