$ git clone -n https://github.com/xcp-ng-rpms/xcp-ng-deps.git /var/lib/mock/v8.3-u-pcoval1-10888-29385/root/chroot_tmpdir/scmroot/xcp-ng-deps
Cloning into '/var/lib/mock/v8.3-u-pcoval1-10888-29385/root/chroot_tmpdir/scmroot/xcp-ng-deps'...
$ git fetch origin 0993ef724fd05c8e25ea8f689815c4aa808ca0f5:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xcp-ng-deps
 * [new ref]         0993ef724fd05c8e25ea8f689815c4aa808ca0f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0993ef7 bump release for test build