diff --git a/src/app/shared/form/form.service.ts b/src/app/shared/form/form.service.ts
index bb4a23f0d0..8a7eb184a8 100644
--- a/src/app/shared/form/form.service.ts
+++ b/src/app/shared/form/form.service.ts
@@ -108,11 +108,14 @@ export class FormService {
     });
   }
 
+  /**
+   * Check if form group has an invalid form control
+   * @param formGroup The form group to check
+   */
   public hasValidationErrors(formGroup: FormGroup | FormArray): boolean {
     let hasErrors = false;
     const fields: string[] = Object.keys(formGroup.controls);
     for (const field of fields) {
-    // Object.keys(formGroup.controls).forEach((field) => {
       const control = formGroup.get(field);
       if (control instanceof FormControl) {
         hasErrors = !control.valid && control.touched;
@@ -122,7 +125,6 @@ export class FormService {
       if (hasErrors) {
         break;
       }
-    // });
     }
     return hasErrors;
   }
diff --git a/src/app/submission/edit/submission-edit.component.ts b/src/app/submission/edit/submission-edit.component.ts
index bd9876da8e..c415b89b81 100644
--- a/src/app/submission/edit/submission-edit.component.ts
+++ b/src/app/submission/edit/submission-edit.component.ts
@@ -121,8 +121,8 @@ export class SubmissionEditComponent implements OnDestroy, OnInit {
             this.notificationsService.info(null, this.translate.get('submission.general.cannot_submit'));
             this.router.navigate(['/mydspace']);
           } else {
-          const { errors } = submissionObjectRD.payload;
-          this.submissionErrors = parseSectionErrors(errors);
+            const { errors } = submissionObjectRD.payload;
+            this.submissionErrors = parseSectionErrors(errors);
             this.submissionId = submissionObjectRD.payload.id.toString();
             this.collectionId = (submissionObjectRD.payload.collection as Collection).id;
             this.selfUrl = submissionObjectRD.payload._links.self.href;
diff --git a/src/app/submission/form/submission-form.component.ts b/src/app/submission/form/submission-form.component.ts
index b04ce4914b..4cbffbca78 100644
--- a/src/app/submission/form/submission-form.component.ts
+++ b/src/app/submission/form/submission-form.component.ts
@@ -162,7 +162,6 @@ export class SubmissionFormComponent implements OnChanges, OnDestroy {
             this.uploadFilesOptions.authToken = this.authService.buildAuthHeader();
             this.uploadFilesOptions.url = endpointURL.concat(`/${this.submissionId}`);
             this.definitionId = this.submissionDefinition.name;
-            // const { errors } = item;
             this.submissionService.dispatchInit(
               this.collectionId,
               this.submissionId,
diff --git a/src/app/submission/objects/submission-objects.reducer.ts b/src/app/submission/objects/submission-objects.reducer.ts
index 1b1b16b485..4159c56ae1 100644
--- a/src/app/submission/objects/submission-objects.reducer.ts
+++ b/src/app/submission/objects/submission-objects.reducer.ts
@@ -97,12 +97,12 @@ export interface SubmissionSectionObject {
   data: WorkspaceitemSectionDataType;
 
   /**
-   * The list of the section's errors to show
+   * The list of the section's errors to show. It contains the error list to display when section is not pristine
    */
   errorsToShow: SubmissionSectionError[];
 
   /**
-   * The list of the section's errors detected by the server
+   * The list of the section's errors detected by the server. They may not be shown yet if section is pristine
    */
   serverValidationErrors: SubmissionSectionError[];
 
diff --git a/src/app/submission/sections/sections.service.ts b/src/app/submission/sections/sections.service.ts
index 1ffcc2321c..dd68d42a87 100644
--- a/src/app/submission/sections/sections.service.ts
+++ b/src/app/submission/sections/sections.service.ts
@@ -173,6 +173,16 @@ export class SectionsService {
     );
   }
 
+  /**
+   * Get the list of validation errors present in the given section
+   *
+   * @param submissionId
+   *    The submission id
+   * @param sectionId
+   *    The section id
+   * @param sectionType
+   *    The type of section for which retrieve errors
+   */
   getShownSectionErrors(submissionId: string, sectionId: string, sectionType: SectionsType): Observable<SubmissionSectionError[]> {
     let errorsState$: Observable<SubmissionSectionError[]>;
     if (sectionType !== SectionsType.SubmissionForm) {
@@ -422,9 +432,11 @@ export class SectionsService {
    * @param data
    *    The section data
    * @param errorsToShow
-   *    the list of the section's errors to show
+   *    The list of the section's errors to show. It contains the error list
+   *    to display when section is not pristine
    * @param serverValidationErrors
-   *    the list of the section errors detected by the server
+   *    The list of the section's errors detected by the server.
+   *    They may not be shown yet if section is pristine
    * @param metadata
    *    The section metadata
    */