cubicweb #2186099 system source authenticate succeed if password is null in database [validation pending]

whatever the given password

prioritynormal
typebug
done in3.14.4
load0.100
load left0.000
closed by#c2a91d6639d8 [system source]?fix authentication: don't allow login whatever the given password if user password is NULL in database. Closes #2186099