$ git clone -n https://src.fedoraproject.org/rpms/rust-gdk-sys0.15.git /var/lib/mock/f38-build-side-43-rust-devel-1413413-31444/root/chroot_tmpdir/scmroot/rust-gdk-sys0.15
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1413413-31444/root/chroot_tmpdir/scmroot/rust-gdk-sys0.15'...
$ git fetch origin 8c33866f856792307f58fc4a858caaef1598f553:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gdk-sys0.15
 * [new ref]         8c33866f856792307f58fc4a858caaef1598f553 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c33866 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild