Blog Marker not shown in category view

Hi,

i noticed, that the map doesnt show any marker in the category view:

Part of the message is hidden for the guests. Please log in or register to see it.


But when i look into a post item a marker is shown on the city "München" in Germany.

Part of the message is hidden for the guests. Please log in or register to see it.


But as i understand, normally there is no relation between a post and the category the post is published into?!
So the marker should display also in the category view...

Btw, for further development, it would be great to show only markers dependent of the category their are into it.