$ git clone -n https://src.fedoraproject.org/rpms/source-to-image.git /var/lib/mock/f41-build-side-1-2670121-29000/root/chroot_tmpdir/scmroot/source-to-image
Cloning into '/var/lib/mock/f41-build-side-1-2670121-29000/root/chroot_tmpdir/scmroot/source-to-image'...
$ git fetch origin 380871fe22e4692a268e5088e124831ec0073b92:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/source-to-image
 * [new ref]         380871fe22e4692a268e5088e124831ec0073b92 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 380871f convert ASL 2.0 license to SPDX