$ git clone -n https://src.fedoraproject.org/rpms/arm-trusted-firmware.git /var/lib/mock/f39-build-2560737-62096/root/chroot_tmpdir/scmroot/arm-trusted-firmware
Cloning into '/var/lib/mock/f39-build-2560737-62096/root/chroot_tmpdir/scmroot/arm-trusted-firmware'...
$ git fetch origin 177d7a9cfb52b1924d5e9e1b77a42fda0256c262:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/arm-trusted-firmware
 * [new ref]         177d7a9cfb52b1924d5e9e1b77a42fda0256c262 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 177d7a9 Add support for Texas Instrument's K3 Multicore SoC architecture processors.