Fix flaky MultiHostValidatorOperator topology serial race#5748
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Fixes DACH-NY/cn-test-failures#8444 [ci] Theory: After bobValidator reconnects, its participant's topology store can still lag behind the party-to-participant change aliceValidator authorized while bob was disconnected. "Clear the onboarding flags" possibly races with catching up to topology and therefore gets rejected with TOPOLOGY_SERIAL_MISMATCH. The best smoking gun I have for this from the logs is that reconnect finishes at `2026-05-18T06:52:39.586Z `, then we try the propose at `2026-05-18T06:52:39.631`. This is very short time... So either this really fixes it or we have better proof that somehow a topology transaction disappears again (if this is what happens). Signed-off-by: Martin Florian <martin.florian@digitalasset.com>
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Fixes DACH-NY/cn-test-failures#8444
[ci]
Theory: After bobValidator reconnects, its participant's topology store can still lag behind the party-to-participant change aliceValidator authorized while bob was disconnected. "Clear the onboarding flags" possibly races with catching up to topology and therefore gets rejected with TOPOLOGY_SERIAL_MISMATCH.
The best smoking gun I have for this from the logs is that reconnect finishes at
2026-05-18T06:52:39.586Z, then we try the propose at2026-05-18T06:52:39.631. This is very short time...So either this really fixes it or we have better proof that somehow a topology transaction disappears again (if this is what happens).
Signed-off-by: Martin Florian martin.florian@digitalasset.com