CIV-0000 clear evidence selection lists on submission (#3249)

* clear evidence selection lists on submission

* checkstyle

src/main/java/uk/gov/hmcts/reform/civil/handler/callback/user/EvidenceUploadHandlerBase.java

@@ -636,6 +636,22 @@ CallbackResponse documentUploadTime(CallbackParams callbackParams) {
             setCategoryIdAndRenameDoc(caseData.getDocumentEvidenceForTrialApp2(), document -> document.getValue().getDocumentUpload(), APPLICANT_TWO_TRIAL_DOC_CORRESPONDENCE);
         }
 
+        // null the values of the lists, so that on future retriggers of the event, they are blank
+        caseDataBuilder.disclosureSelectionEvidence(null);
+        caseDataBuilder.disclosureSelectionEvidenceRes(null);
+        caseDataBuilder.witnessSelectionEvidence(null);
+        caseDataBuilder.witnessSelectionEvidenceSmallClaim(null);
+        caseDataBuilder.witnessSelectionEvidenceRes(null);
+        caseDataBuilder.witnessSelectionEvidenceSmallClaimRes(null);
+        caseDataBuilder.expertSelectionEvidenceRes(null);
+        caseDataBuilder.expertSelectionEvidence(null);
+        caseDataBuilder.expertSelectionEvidenceSmallClaim(null);
+        caseDataBuilder.expertSelectionEvidenceSmallClaimRes(null);
+        caseDataBuilder.trialSelectionEvidence(null);
+        caseDataBuilder.trialSelectionEvidenceSmallClaim(null);
+        caseDataBuilder.trialSelectionEvidenceRes(null);
+        caseDataBuilder.trialSelectionEvidenceSmallClaimRes(null);
+
         return AboutToStartOrSubmitCallbackResponse.builder()
             .data(caseDataBuilder.build().toMap(objectMapper))
             .build();