$ git clone -n https://src.fedoraproject.org/rpms/cosmic-store.git /var/lib/mock/f41-build-859338-168684/root/chroot_tmpdir/scmroot/cosmic-store
Cloning into '/var/lib/mock/f41-build-859338-168684/root/chroot_tmpdir/scmroot/cosmic-store'...
$ git fetch origin eb93461797b2a8393339221785560b4411d3224a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cosmic-store
 * [new ref]         eb93461797b2a8393339221785560b4411d3224a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb93461 "Update to 1.0.0~alpha.2"