According to javadoc Labelmanager.getCurrentContentForLabel does not return deleted pages.

However, deleted pages are returned.

• Install the following plugin https://github.com/ukuhnhardt/labelmanagerbug.git
• Create a few pages with the same label
• Add a page with the {page-report:label=Label}
• delete one of the prev pages
• refresh the page report page

Hint: rebuilding the index does not solve the problem