$ git clone -n https://github.com/xcp-ng-rpms/xcp-emu-manager /var/lib/mock/v8.3-u-lpottier1-10101-28717/root/chroot_tmpdir/scmroot/xcp-emu-manager
Cloning into '/var/lib/mock/v8.3-u-lpottier1-10101-28717/root/chroot_tmpdir/scmroot/xcp-emu-manager'...
$ git fetch origin f08956fbdfe1c4daa3c450e162bcb6e63555c453:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xcp-emu-manager
 * [new ref]         f08956fbdfe1c4daa3c450e162bcb6e63555c453 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f08956f Test version 1.2.0-2.0.fixlive.1