$ git clone -n https://src.fedoraproject.org/rpms/rust-scroll_derive.git /var/lib/mock/f39-build-1494607-34542/root/chroot_tmpdir/scmroot/rust-scroll_derive
Cloning into '/var/lib/mock/f39-build-1494607-34542/root/chroot_tmpdir/scmroot/rust-scroll_derive'...
$ git fetch origin 62f27aaef21357aa61ac82a3d1ec75fabb283fc4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-scroll_derive
 * [new ref]         62f27aaef21357aa61ac82a3d1ec75fabb283fc4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 62f27aa Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild