NTP binding 2.0 (OH2) - bug - hosname parameter not saved

Using PaperUI, I installed the NTP binding. A ntp:ntp:local thing was created. Then I edited its parameters to switch from default server 0.pool.ntp.org to 0.fr.pool.ntp.org. If I open again the parameters, the value is 0.fr.pool.ntp.org as expected.
Now if I stop OH2 (logout command in the console) and start again OH2, when I edit my NTP thing parameters, my hostname is now 0.pool.ntp.org rather than 0.fr.pool.ntp.org