$ git clone -n https://src.fedoraproject.org/rpms/rpm.git /var/lib/mock/f40-build-2215051-52409/root/chroot_tmpdir/scmroot/rpm
Cloning into '/var/lib/mock/f40-build-2215051-52409/root/chroot_tmpdir/scmroot/rpm'...
$ git fetch origin 65ce6ed5d2db5c0348164c6441caab19cb56c352:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rpm
 * [new ref]         65ce6ed5d2db5c0348164c6441caab19cb56c352 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 65ce6ed Migrate to SPDX license