$ git clone -n https://src.fedoraproject.org/rpms/rust-drm-ffi.git /var/lib/mock/f45-build-41399-782/root/chroot_tmpdir/scmroot/rust-drm-ffi
Cloning into '/var/lib/mock/f45-build-41399-782/root/chroot_tmpdir/scmroot/rust-drm-ffi'...
$ git fetch origin 0a057d17ad7051f1056ea86a32163fd3ad7400b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-drm-ffi
 * [new ref]         0a057d17ad7051f1056ea86a32163fd3ad7400b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0a057d1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild