Merge pull request #2629 from datadryad/institution-keep-sponsor

Lock in institutional sponsors at submission

Author: ryscher

app/models/stash_engine/support/payment_methods.rb

@@ -93,6 +93,10 @@ def record_payment
 
       def institution_will_pay?
         tenant = latest_resource&.tenant
+
+        # do not remove recorded institution sponsor due to sponsorship change
+        return true if payment_id.present? && payment_id == tenant&.id
+
         return false unless tenant&.payment_configuration&.covers_dpc
 
         if tenant&.authentication&.strategy == 'author_match'