$ git clone -n https://src.fedoraproject.org/rpms/libdc1394.git /var/lib/mock/f45-build-16041-481/root/chroot_tmpdir/scmroot/libdc1394
Cloning into '/var/lib/mock/f45-build-16041-481/root/chroot_tmpdir/scmroot/libdc1394'...
$ git fetch origin 0904faf5bb741120752855da84d4f3508cc6da0f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libdc1394
 * [new ref]         0904faf5bb741120752855da84d4f3508cc6da0f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0904faf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild