"Display name publicly as" setting not set until a change is made in the setting

[nickharambee]

I have found this issue with several users that I have set up on my site. The default value for "Display name publicly as" is the first name of the user when creating a new user, or at least that is what shows in the "Display name publicly as" drop-down menu. However, when creating a new user, the full name, i.e. the first and last name is what displays publicly. In order to get only the first name to display publicly I need to set the "Display name publicly as" option to another option, save changes, and then reset it to just the first name, and save changes again.

Surely, if it is the first name that shows in the drop-down menu, it should be the first name that actually displays publicly, without having to go through this rather strange process?

I am using the latest version of Buddypress (1.5.6) as well as several other plugins. I have not tried disabling all of these.

[SergeyBiryukov]

Can't reproduce on a clean install. When creating a new user, the displayed name defaults to username.

[dd32]

Can't reproduce, default is the user login, and setting it to Firstname works as expected.

Must be a conflict with a plugin which set defaults for new users (which seems likely given it's a BuddyPress site)