Merge pull request #2021 from OpenBazaar/modfee

(#1949) Fix patching profile with moderator fee

Author: cpacia

core/profile.go

@@ -195,6 +195,13 @@ func (n *OpenBazaarNode) PatchProfile(patch map[string]interface{}) error {
 
 	repoProfile.NormalizeDataForAllSchemas()
 
+	if repoProfile.GetProtobuf().ModeratorInfo != nil &&
+		repoProfile.GetProtobuf().ModeratorInfo.Fee != nil &&
+		repoProfile.GetProtobuf().ModeratorInfo.Fee.FeeType == pb.Moderator_Fee_PERCENTAGE {
+
+		repoProfile.GetProtobuf().ModeratorInfo.Fee.FixedFee = nil
+	}
+
 	if err := repoProfile.Valid(); err != nil {
 		return fmt.Errorf("invalid profile: %s", err.Error())
 	}