Setup-alpine/setup-user not working

Setup-user (USEROPTS) needs parameters containing spaces for groups and SSH keys.

USEROPTS="-a -g 'group1 group2'" does not work, becuase setup-user gets called with... weird parameters:

[setup-user, -a, 'group1, group2']

I have verified this with strace. Note that one needs to use withspace both to separate arguments, and mark whitespace inside SSH public key or groups.

A solution I'm using right now looks like this:

IFS=';' setup-user ${USEROPTS:--a -g 'group1 group2 group3'}

Clarification: I have modified setup-alpine to the line above.

Then USEROPTS could be -a;-g;group1 group2.