fix(runner): keep the warm session when the client sends a minimal history - #5490

    1 files  ±0     80 suites  ±0   21s ⏱️ ±0s
1 266 tests ±0  1 266 ✅ ±0  0 💤 ±0  0 ❌ ±0 
1 268 runs  ±0  1 268 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit 686612e. ± Comparison against earlier commit 66e70b6.