$ git clone -n https://src.fedoraproject.org/rpms/rust-drm-sys.git /var/lib/mock/f45-build-41397-782/root/chroot_tmpdir/scmroot/rust-drm-sys
Cloning into '/var/lib/mock/f45-build-41397-782/root/chroot_tmpdir/scmroot/rust-drm-sys'...
$ git fetch origin 954e76950545afc1424412bc1c256e8c64fcbe28:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-drm-sys
 * [new ref]         954e76950545afc1424412bc1c256e8c64fcbe28 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 954e769 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild