Feature flag to allow null ledger data in responses #672
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This PR is a quickfix for #650 (and #538, #649). It introduces a new feature flag
ALLOW_EMPTY_LEDGER_DATA_RESPONSES
(default:false
). When set totrue
it renders unavailable ledger data (likeclose_time
) asnull
instead of sending500 Internal Server Error
response. This is not a breaking change as the default value isfalse
. It can be released in 0.14.1 patch release.