$ git clone -n https://github.com/xcp-ng-rpms/varstored.git /var/lib/mock/v8.3-incoming-9400-28147/root/chroot_tmpdir/scmroot/varstored
Cloning into '/var/lib/mock/v8.3-incoming-9400-28147/root/chroot_tmpdir/scmroot/varstored'...
$ git fetch origin 1f02c86444604fb541350bc75750fed366d26c1b:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/varstored
 * [new ref]         1f02c86444604fb541350bc75750fed366d26c1b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1f02c86 Merge branch 'XS-8.3' into 8.3-import_varstored-1.2.0-3.xs8.src.rpm