$ git clone -n https://src.fedoraproject.org/rpms/ski.git /var/lib/mock/f40-build-2270558-54827/root/chroot_tmpdir/scmroot/ski
Cloning into '/var/lib/mock/f40-build-2270558-54827/root/chroot_tmpdir/scmroot/ski'...
$ git fetch origin b0369047ee19117c74b3044a1e7de6bf09f93793:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ski
 * [new ref]         b0369047ee19117c74b3044a1e7de6bf09f93793 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b036904 Backport upstream patches to fix C type errors