Print overlay with an empty geom feature fail

[jusabatier]

Cf. geosolutions-it/MapStore2#9791

[jusabatier]

Resume :

When searching plots, it can happen that some doesn't have a geometry because they don't yet exist in the vectorized cadastre.

If some of this plots match a search, it look like they are added to map in order to highlight results. But when we want to print the map checking "Include overlays", it result in an error because some features have empty geometry.

Cadastrapp plugin shouldn't create features without geometry.

How to reproduce

-Manage to have an overlay that contains fetures with empty geom. (here with cadastrapp as explained before)
-Use the print function
-Check "Include overlays"
-Try to print

Expected Result
It should print with only features that have a geometry (deleting ones without)

Current Result
We have an error message and print fail