Children Display Macro Only Shows 500 Characters of Excerpt Macro

Steps to Reproduce

1. Create a new page in Confluence
2. Create a child page in Confluence from the newly created page
3. Add an excerpt macro to the child page and add over 500 characters of text
4. Go back to the parent page and add the Children Display macro
5. Save
   Please use the attached page formats for easy reproduction

Looking at the parent page, the text in the macro will be truncated at 500 characters. The text is not truncated on the child page (using the excerpt macro). We would like to see no truncation, or at least the truncation limit increased and this limit noted in the documentation. Listing this as a bug as it is not noted in the documentation.