Wasm timeout attempting certain pair trades

[smk762]

Some background - https://github.com/KomodoPlatform/WebDEX/issues/806

Errors seen in logs which may be related:
17 15:22:37, coins:tendermint_tx_history_v2:862] INFO Stopping tx history fetching for IRIS. Reason: StorageError("add_transactions_to_history failed: tx_history_storage_v2:63] object_store:43] ErrorSaving(\"Error uploading an item: \\\"DomException { obj: Object { obj: JsValue(ConstraintError: Unable to add key to index 'wallet_id_internal_id': at least one key does not satisfy the uniqueness requirements.\\\\nundefined) } }\\\"\")")

17 09:52:38, dispatcher:103] ERROR RPC error response: taker_swap:2200] tendermint_coin:1154] tendermint_coin:669] Transport error: Account is None

I"ll try and zero in on which build introduced the problem.

[smk762]

Further testing shows first request to timeout is trade_preimage. I tested spamming this on https://atomicdex-play.lordofthechains.com/ for a bit, and noticed that when trying to request version soon after, there seemed to be a queue of responses I had to wait for before the version response appeared. Not sure if this is on the wasm side or the react front end.