$ git clone -n https://src.fedoraproject.org/rpms/libsexymm.git /var/lib/mock/f41-build-side-1-2645450-27102/root/chroot_tmpdir/scmroot/libsexymm
Cloning into '/var/lib/mock/f41-build-side-1-2645450-27102/root/chroot_tmpdir/scmroot/libsexymm'...
$ git fetch origin 81256cfe73d2953d5495b7dbbed2dd2caa631763:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsexymm
 * [new ref]         81256cfe73d2953d5495b7dbbed2dd2caa631763 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 81256cf convert license to SPDX