Page List items shown as Teaser have invalid dataLayer date for Teaser component

[HitmanInWis]

Bug present as of version: 2.24.7-SNAPSHOT

When rendering List items as Teasers, the Teaser data layer object has a repo:modifyDate that is incorrect in one of two ways.

Current functionality:

• When List item refers to an internal AEM page, the repo:modifyDate is pulled from the List (not List Item) resource
• When List item refers to an external URL, the repo:modifyDate is pulled from the List Item resource

Modifying internal AEM page links to pull from the List Item resource is not the answer, since for Child/Search/Tag options the List Item resource isn't actually a resource in the JCR.

One solution is to simply null out the value in both com.adobe.cq.wcm.core.components.internal.models.v2.PageListItemImpl#getTeaserResource and com.adobe.cq.wcm.core.components.internal.models.v4.ExternalLinkListItemImpl#getTeaserResource by adding the following lines:

overriddenProperties.put(JcrConstants.JCR_LASTMODIFIED, null);
overriddenProperties.put(JcrConstants.JCR_CREATED, null);