$ git clone -n https://src.fedoraproject.org/rpms/subversion-api-docs.git /var/lib/mock/f41-build-side-1-2771359-32225/root/chroot_tmpdir/scmroot/subversion-api-docs
Cloning into '/var/lib/mock/f41-build-side-1-2771359-32225/root/chroot_tmpdir/scmroot/subversion-api-docs'...
$ git fetch origin 68b6e5f9bfc419c9d5e097afc3437b6c654ef5e4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/subversion-api-docs
 * [new ref]         68b6e5f9bfc419c9d5e097afc3437b6c654ef5e4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 68b6e5f convert license to SPDX