$ git clone -n https://src.fedoraproject.org/rpms/mingw-sparsehash.git /var/lib/mock/f41-build-side-1-2648432-27397/root/chroot_tmpdir/scmroot/mingw-sparsehash
Cloning into '/var/lib/mock/f41-build-side-1-2648432-27397/root/chroot_tmpdir/scmroot/mingw-sparsehash'...
$ git fetch origin 217c4f0f148c9bdd6f319be7e687c2df0c611b78:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-sparsehash
 * [new ref]         217c4f0f148c9bdd6f319be7e687c2df0c611b78 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 217c4f0 convert license to SPDX