Why v1/PageImpl implements title differently than v1/PageListItemImpl or v1/TitleImpl

[anupsheth]

Core components should follow the title hierarchy consistently in different implementations when using and displaying page title.

In TitleImpl Page Title is used before Title while PageListItemImpl uses Navigation title -> Page title -> Title -> Name hierarchy.

Title should be used as short title to display page list in AEM interface while Page title should be the more longer version of describing the page and should appear as <title>${page.title}</title> in head.jsp. Currently, this implementation forces users to put Title and Page title as the same if you don't override the head.jsp or the model while other components follow appropriate hierarchy.

Use of currentPage.getTitle should only be fallback for currentPage.getPageTitle in all instances in my opinion. Use of Navigation title should be reserved for Navigation, Breadcrumb or List component for consistency.

I would like to know the rationale behind such implementation.