tv4 causes side-effects on the schema (alters it) in the official JSON-schema test suite

[ebdrup]

When running tv4 against the official JSON-schema test suite, running the tests:

• change resolution scope, changed scope ref valid
• change resolution scope, changed scope ref invalid

has side-effects on the schema. The schema is altered by tv4.

https://github.com/Muscula/json-schema-benchmark/blob/master/reports/tv4-side-effects.md

Edit: I just added more detail to the error report. To make it easier for you to see what's happening.