In a template, I want to setup a graph with:
Y axis MAX value : Fixed 0.000
Y axis MAX value : Item "Template_root_fs:FS Size"
Items : "Template_root_fs:FS used"

When the graph is drawn for an host linked to this template, "FS Size" is not used as Y max. value.
Instead, Y max value seems to be "FS used" maximum value.

If I create the same graph for an host (not a template), it is working fine.
This problem makes this feature almost useless for us since we rely heavily on templates for scalability reason.