By: Tom Sydney Kerckhove <syd@cs-syd.eu>
Record remaining group records as skipped before MutationFailFast Previously, when global fail-fast was on and a non-skipped result was a failure, runOneGroup threw MutationFailFast immediately after the failing result, so later records in the same group never appeared in the accumulator and were missing from the partial report. The docstring already claimed all the group's results were written before the throw; the code now matches.