If I set the JSD Organizations field through the IssueService (IssueInputParameters) I can set an int value, and have the related Organization set on the issue.

If I set multiple values, int[], JSD fails to process this, its only 'expecting' a single integer value. It seems a doddle to expand this to detect an incoming int[] array and do multiple organisation lookups.

Currently the Cloud API for JSD allows setting multiple Organizations.  Because this can't be done through the standard IssueService, could be a bug.

Yes I'm sure if issues are created through JSD APi's directly, this may be achievable, we aren't, hence issue.