Open-event-server: Manually correct the order of fields for open thailand summit

[CosmicCoder96]

After migrating from legacy, their ids, are jumbled up, not following the usual pattern.

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[iamareebjamal]

order of fields in custom form?

[uds5501]

@iamareebjamal yes, in session custom form.

[CosmicCoder96]

Done.