commit 420c1c0f1a71aa7eacbff017e58832e0825e83ad
Author: Victor Lowther <victor.lowther@gmail.com>
Date:   Tue Nov 3 11:53:01 2020 -0600

    fix(machineRepos): Fix missing machine repos in SLedgehammer

    If nothing had ever been booted into the a cent 7 install environment,
    package-repositories was empty, and the centos-7-install ISO had its
    ISO uploaded, then .MachineRepos in SLedghammer would be empty when
    running through the task that rewrites the yum config instead of
    containing a single entry that points to ourself.  Added a couple of
    special cases during the bootenv save path and the RerenderEverything
    path to address this issue.

M   backend/bootenv.go
M   backend/dataTracker.go

End of Note