Alexander Bias reorted on matterhorn-users  that dc:identifier fields aset in the ingest to /ingest/addMediapackage have no effect. Tey are, in fact, just discarded at some point and replaced by a newly generated id. This should not happen. The identifier should stay and should also become the mediapackage identifier.
This patch is based on the patch for which needs to be applied prior to this patch.
The attached patch is based on the patch for MH-9784.
It will check if a dc:identifier is set for the episode and use it as the mediapackage identifier.
It also fixes by checking and discarding empty empty form fields.
Committed to trunk with rev 15173, merged to 1.4.x with rev 15175.