'Created' date for biomaterial events should not be set by default
|Reported by:||Nicklas Nordborg||Owned by:||Nicklas Nordborg|
The current implementation in the core API set the 'Created' date to the current date. This affects, for example, batch importers and other code which doesn't set a value in some cases (expecting it to be null). The web client is not affected since it always set an explicit value (null or a specific date).