structaccess: two ForceSendFields fixes in Set - #6466
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Set updated ForceSendFields before assigning, so a value that could not be converted left the field's send-behaviour changed even though the Set failed: setting an omitempty numeric field to "" recorded the field as force-send and then failed the conversion. The assignment goes first. Co-authored-by: Isaac
Set converted the caller's value on the way in but judged emptiness from the value it was handed, so an omitempty numeric or bool field set from a string that converts to zero was stored as zero and then left out of ForceSendFields -- and marshalled as absent. Setting max_concurrent_runs to "0" silently meant unset. Latent today, since no value library writes a number as a quoted string, but it contradicts the contract callers rely on: a scalar is left to structaccess to convert between the numeric and string kinds. Co-authored-by: Isaac
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Two independent bugs in
Set:""recorded it as force-send and then failed."0"was stored as zero and left out of ForceSendFields — marshalled as absent. Latent today, since no value library writes a number as a quoted string.Both tests fail without the fix.
This pull request and its description were written by Isaac.