Template Cost Problem

I am adding a new template and also fill in the cost fields.

Memory and CPU seems to work fine but when I add costs for disk my values are changed upon save.

Disk Cost per GB/h: 0,05 (before clicking safe)
Disk Cost per GB/h: 51,2 (after saving)

So there is a modification taking place which I do not exactly understand.

Is this related to: https://dev.opennebula.org/issues/5298? Or might this be another issue?

Here you also have some screenshots.

Before saving

After saving

Is really no one experiencing these problems?