$ git clone -n https://src.fedoraproject.org/rpms/ktuberling.git /var/lib/mock/f40-build-2264465-54562/root/chroot_tmpdir/scmroot/ktuberling
Cloning into '/var/lib/mock/f40-build-2264465-54562/root/chroot_tmpdir/scmroot/ktuberling'...
$ git fetch origin 2f9d69e4cb39ef938a9ec5ac1b64f933e350afc1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ktuberling
 * [new ref]         2f9d69e4cb39ef938a9ec5ac1b64f933e350afc1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2f9d69e 24.01.90