$ git clone -n https://src.fedoraproject.org/rpms/beaker.git /var/lib/mock/f41-build-side-1-2632308-25786/root/chroot_tmpdir/scmroot/beaker
Cloning into '/var/lib/mock/f41-build-side-1-2632308-25786/root/chroot_tmpdir/scmroot/beaker'...
$ git fetch origin d28fcc9773df8cfb8fd8d2e4b941a69b4ced6a6a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/beaker
 * [new ref]         d28fcc9773df8cfb8fd8d2e4b941a69b4ced6a6a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d28fcc9 convert license to SPDX