$ git clone -n https://src.fedoraproject.org/rpms/toga2.git /var/lib/mock/f41-build-side-1-2670851-29064/root/chroot_tmpdir/scmroot/toga2
Cloning into '/var/lib/mock/f41-build-side-1-2670851-29064/root/chroot_tmpdir/scmroot/toga2'...
$ git fetch origin 4cb8aa51dad9f7e98625ee5b94411cd247298f4d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/toga2
 * [new ref]         4cb8aa51dad9f7e98625ee5b94411cd247298f4d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4cb8aa5 convert GPLv2 license to SPDX