Add tests for tern `tabulate_rsp_subgroups` bug and formatters key columns bug #194

All 214 tests pass, 31 skipped in 3m 12s

1 files ±0 111 suites ±0 3m 12s ⏱️ -5s
245 tests ±0 214 ✅ ±0 31 💤 ±0 0 ❌ ±0
479 runs ±0 236 ✅ ±0 243 💤 ±0 0 ❌ ±0

Results for commit 4da13c8. ± Comparison against earlier commit 59fc9bc.