Bug in SiteTree view

[danielemanassero]

I use this module with the silverstripe/blog module and I extended the BlogHolder.
BlogHolder:
extensions:
- GridFieldSiteTree_PageHolderExtension
There is a bug: when I open a BlogEntry, its title is visible in the SiteTree list and when I open another BlogEntry, its title is also visible in the SiteTree list together the other title.
In my opinion, you don't need to see the BlogEntry pages in the SiteTree list.