We have some local groups that we refer to in our group policy, so I need to
make sure those groups are created on every computer that belongs to a
domain.    I created a system startup script in group policy to create these
using command:

    net localgroup groupname /add

What I am noticing is that on some of our computers, after rebooting them,
local groups that are in this script that had local entries, are now
*empty*.   Is there any case under which the above command is documented to
wipe out the local group's contents when that group already exists?

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