$ git clone -n https://src.fedoraproject.org/rpms/dustrac.git /var/lib/mock/f45-build-8318-384/root/chroot_tmpdir/scmroot/dustrac
Cloning into '/var/lib/mock/f45-build-8318-384/root/chroot_tmpdir/scmroot/dustrac'...
$ git fetch origin 3fdfb57226c1b4dc66ed61212c345a3a5310d1a8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dustrac
 * [new ref]         3fdfb57226c1b4dc66ed61212c345a3a5310d1a8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3fdfb57 Fix rendering issues