Preset role is not passed on to new Webtrees account

[Barendm]

The role that I have set to a Pre-approved user is not passed on to the created WebTrees user.

I have set-up a Pre-approval (Facebook name, ID's, Role) of someone that has not yet an account in my WebTrees site. Then this person connects using Facebook and a user record is created just like expected. Although the Role that was pre-set is not set in the webtrees user account.

I use webtrees 1.5.3. and WT_FACEBOOK_VERSION v1.0-beta.5
I have set Dutch as my primary language.