Receive 'protected fields can’t be modified' error for eresource fields on PO line that is a Physical Resource

Overview:
Steps to Reproduce:

1. Issue can be observed in Lotus Bugfest (attempting to edit a PO Line on an Opened Order)
2. https://bugfest-lotus.int.aws.folio.org/orders/view/2beca736-a16b-40fb-b460-08d5600c1672/po-line/edit/236cd00a-30b1-40d4-988e-3922d8e9fca8?limit=50&offset=0&qindex=metadata.createdDate&query=10%2F15%2F2021
3. PO Line in Open Order is a 'Physical resource'
4. A GET of PO line shows record has a "eresource" section https://okapi-bugfest-lotus.int.aws.folio.org/orders-storage/po-lines/236cd00a-30b1-40d4-988e-3922d8e9fca8
5. Attempt to edit PO Line (changing a field which can be edited such as Receiving Note )

Expected Results:

Field is edited and saved.

Actual Results:
Receive error - protected fields can’t be modified
Response from PUT https://okapi-bugfest-lotus.int.aws.folio.org/orders/order-lines/236cd00a-30b1-40d4-988e-3922d8e9fca8 (per below returns a 400. response and references eresource fields)
{
"errors" : [

{ "message" : "Protected fields can't be modified", "code" : "protectedFieldChanging", "parameters" : [ ], "protectedAndModifiedFields" : [ "eresource.createInventory", "eresource.trial" ] }

],
"total_records" : 1
}

Additional Information:

The problem is in the order line type and the presence of extra elements in it:

• ("Electronic Resource") should contain only "eresource" element
• ("P/E Mix") should contain both "physical" and "eresource" elements
• ("Physical Resource") should contain only "physical" element
• ("Other") should contain only "physical" element"

Either a migration script is needed to correct PO Lines or update to logic for protected fields to ignore non applicable extra elements.

Note:
"A work around is to “unopen” the order and make the changes."

Interested parties: